 |
Theophylline
80. Manning PJ, Watson RM, Margolskee DJ, Williams VC, Schwartz JI, O'Byrne PM. Inhibition of exercise-induced bronchoconstriction by MK571, a potent leukotriene D4receptor antagonist. N Engl J Med 1990; 323: 1736-9. Stevenson DD. Diagnosis, prevention, and treatment of adverse reactions to aspirin and nonsteroidal anti-inflammatory drugs. J Allergy Clin Immunol 1984; 74: 617-22. Cowburn AS, Sladek K, Soja J, et al. Overexpression of leukotriene C4 synthase in bronchial biopsies from patients with aspirin-intolerant asthma. J Clin Invest 1998; 101: 834-46. Sanak M, Simon HU, Szczeklik A. Leukotriene C4 synthase promoter polymorphism and risk of aspirin-induced asthma. Lancet 1997; 350: 1599600. Kumlin M, Dahlen B, Bjorck T, Zetterstrom O, Granstrom E, Dahlen SE. Urinary excretion of leukotriene E4 and 11-dehydro-thromboxane B2 in response to bronchial provocations with allergen, aspirin, leukotriene D4, and histamine in asthmatics. Rev Respir Dis 1992; 146: 96-103. Christie PE, Tagari P, Ford-Hutchinson AW, et al. Urinary leukotriene E4 concentrations increase after aspirin challenge in aspirin-sensitive asthmatic subjects. Rev Respir Dis 1991; 143: 1025-9. Knapp HR, Sladek K, Fitzgerald GA. Increased excretion of leukotriene E4 during aspirin-induced asthma. J Lab Clin Med 1992; 119: 48-51. Dahlen B, Margolskee DJ, Zetterstrom O, Dahlen SE. Effect of the leukotriene receptor antagonist MK-0679 on baseline pulmonary function in aspirin sensitive asthmatic subjects. Thorax 1993; 48: 1205-10. Barnes NC, Pujet JC. Pranlukast, a novel leukotriene receptor antagonist: results of the first European, placebo controlled, multicentre clinical study in asthma. Thorax 1997; 52: 523-7. Spector SL, Smith LJ, Glass M, Accolate Asthma Trialists Group. Effects of 6 weeks of therapy with oral doses of ICI 204, 219, a leukotriene D4 receptor antagonist, in subjects with bronchial asthma. J Respir Crit Care Med 1994; 150: 618-23. Reiss TF, Altman LC, Chervinsky P, et al. Effects of montelukast MK0476 ; , a new potent cysteinyl leukotriene LTD4 ; receptor antagonist, in patients with chronic asthma. J Allergy Clin Immunol 1996; 98: 528-34. Israel E, Rubin P, Kemp JP, et al. The effect of inhibition of 5-lipoxygenase by zileuton in mild-to-moderate asthma. Ann Intern Med 1993; 119: 1059-66. Israel E, Cohn J, Dube L, Drazen JM. Effect of treatment with zileuton, a 5-lipoxygenase inhibitor, in patients with asthma: a randomized controlled trial. JAMA 1996; 275: 931-6. Liu MC, Dube LM, Lancaster J. Acute and chronic effects of a 5-liopxygenase inhibitor in asthma: a 6-month randomized multicenter trial. J Allergy Clin Immunol 1996; 98: 859-71. Reiss TF, Chervinsky P, Dockhorn RJ, Shingo S, Seidenberg B, Edwards TB. Montelukast, a once-daily leukotriene receptor antagonist, in the treatment of chronic asthma: a multicenter, randomized, double-blind trial. Arch Intern Med 1998; 158: 1213-20. Kemp JP, Dockhorn RJ, Shapiro GG, et al. Montelukast once daily inhibits exercise-induced bronchoconstriction in 6- to 14-year-old children with asthma. J Pediatr 1998; 133: 424-8. Knorr B, Matz J, Bernstein JA, et al. Montelukast for chronic asthma in 6- to 14-year-old children: a randomized, double-blind trial. JAMA 1998; 279: 1181-6. Noonan MJ, Chervinsky P, Brandon M. Montelukast, a potent leukotriene receptor antagonist, causes dose-related improvements in chronic asthma. Eur Respir J 1998; 11: 1232-9. Global initiative for asthma: global strategy for asthma management and prevention: NHLBI WHO Workshop report. Bethesda, Md.: National Heart, Lung, and Blood Institute, January 1995. NIH publication no. 953659. ; 99. Guidelines for the diagnosis and treatment of asthma. Expert panel report 2. Clinical practice guidelines. Bethesda, Md.: National Asthma Education Program, April 1997. NIH publication no. 97-4051. ; 100. Hui KP, Barnes NC. Lung function improvement in asthma with a cysteinyl-leukotriene receptor antagonist. Lancet 1991; 337: 1062-3. Tamaoki J, Kondo M, Sakai N, et al. Leukotriene antagonist prevents exacerbation of asthma during reduction of high-dose inhaled corticosteroid. J Respir Crit Care Med 1997; 155: 1235-40. Singulair montelukast sodium ; . West Point, Pa.: Merck, 1998 package insert ; . 103. Fischer AR, McFadden CA, Frantz R, et al. Effect of chronic 5-lipoxygenase inhibition on airway hyperresponsiveness in asthmatic subjects. J Respir Crit Care Med 1995; 152: 1203-7. Schwartz HJ, Petty T, Dube LM, Swanson LJ, Lancaster JF. A randomized controlled trial comparing zileuton with theophylline in moderate asthma. Arch Intern Med 1998; 158: 141-8 Wechsler ME, Garpestad E, Flier SR, et al. Pulmonary infiltrates, eosinophilia, and cardiomyopathy following corticosteroid withdrawal in patients with asthma receiving zafirlukast. JAMA 1998; 279: 455-7.
Tion does not affect the activity of PDE4 on hydrolyzing cAMP[10]. In this study, the extract of GL62 yeast cell had little hydrolyzing effect on cGMP. PDE4A activity on cAMP also was not influenced when cGMP existed in the reaction system. At the concentration of 10 mol L and 100 mol L, cGMP did not affect the PDE4A hydrolyzing-cAMP activity of the extract Fig 3 ; . These suggest that the extract selectively hydrolyze cAMP and that cGMP is not the specific substrate of the extract. T heophylline is one of non-selective PDE inhibitors, which inhibits all members of the PDE family including PDE4. Rolipram is one of the second generation PDE inhibitors, which only inhibits PDE4, including PDE4A, PDE4B, PDE4C, and PDE4D[11]. In this study, the PDE4A activity was inhibited by theophylline and rolipram both in a concentration-dependent manner. Rolipram inhibited the PDE4A activity of the extract more strongly than theophylline. It is suggested that the expressed product of GL62 is PDE4A. Acetamide-45, N- Pyridin-4-yl ; -[1- 4-fluorophenyl ; indol-3-yl]acetamide, was reported as a new antiinflammatory drug[12]. It has been introduced recently that acetamide-45 inhibited the ovalbumin-induced histamine release from peritoneal mast cells, the IL-4 and IL-5 production of Th2 lymphocyte, and the activation of eosinophil[12]. It was also reported that acetamide45 inhibited the contraction of isolated guinea pig trachea induced by histamine and methacholine[13 ]. But the mechanism remains unknown. The present study showed that acetamide-45 had inhibitory effect on PDE4A activity of the expressed product. The nature of this inhibition varied with concentration. At a concentration of 110-5 mol L, acetamide-45 caused feeble depression of hydrolysis of cAMP. However, when the concentration rose to 310-5 mol L, acetamide-45 inhibited the PDE4A activity significantly. At a concentration of 310-4 mol L, acetamide-45 achieved the maximal effect that the remaining activity was 52 % 5 %. The study of higher concentrations was not carried out because of limited dissolution of the compound. Acetamide-45 inhibited the activity of PDE4A stronger than theophylline, but weaker than rolipram Tab 2 ; . So suggested that acetamide-45 may be an effective PDE4 inhibitor and the anti-inflammatory effect of the drug may depend on inhibition of PDE4. In conclusion, the present studies indicate that PDE4A can be expressed in yeast cell GL62 induced by CuSO4, and that acetamide-45, a kind of new anti-in.
Drug theophylline medication
Am J Physiol Gastrointest Liver Physiol 284: 130-137, 2003. doi: 10.1152 ajpgi.00266.2002 You might find this additional information useful. This article cites 32 articles, 9 of which you can access free at: : ajpgi.physiology cgi content full 284 1 G130#BIBL This article has been cited by 2 other HighWire hosted articles: Impaired gastric accommodation and its role in dyspepsia S Kindt and J Tack Gut, December 1, 2006; 55 ; : 1685-1691. [Abstract] [Full Text] [PDF] Effect of oral CCK-1 agonist GI181771X on fasting and postprandial gastric functions in healthy volunteers E. J. Castillo, S. Delgado-Aros, M. Camilleri, D. Burton, D. Stephens, R. O'Connor-Semmes, A. Walker, A. Shachoy-Clark and A. R. Zinsmeister J Physiol Gastrointest Liver Physiol, August 1, 2004; 287 ; : G363-G369. [Abstract] [Full Text] [PDF] Medline items on this article's topics can be found at : highwire anford lists artbytopic.dtl on the following topics: Oncology . Noradrenaline Oncology . Serotonin Medicine . Norepinephrine Pharmacology . Serotonin Uptake Inhibitors Physiology . Digestion Physiology . Humans Updated information and services including high-resolution figures, can be found at: : ajpgi.physiology cgi content full 284 1 G130 Additional material and information about AJP - Gastrointestinal and Liver Physiology can be found at: : the-aps publications ajpgi.
Department of Clinical Pharmacology, The University of Tokushima Faculty of Pharmaceutical Sciences, Tokushima, Japan ; and Third Department of Internal Medicine, and Division of Pharmacy, University Hospital, The University of Tokushima School of Medicine, Tokushima, Japan Abstract : An increase in the serum creatine kinase CK ; level is one of the side effects of theophylline ; on rare occasions, the increase may be followed by rhabdomyolysis. Rheophylline is often administered with drugs that potentially elevate the serum CK level CK-elevating drugs ; such as -agonists and steroids. However, the effects of the combined treatment of theophylline and CK-elevating drugs have not been reported. We, therefore, retrospectively investigated the effects of combined treatment on the serum CK level, in 391 asthmatic outpatients. In this study, the number and type of the CK-elevating drugs administered, and the serum levels of CK and theophylline, were investigated. The patients were divided into four groups : the theophylline-treated and CK-elevating drug-treated group, the theophylline-treated and non-CK-elevating drug-treated group, the non-theophylline-treated and CK-elevating drug-treated group, and the non-theophylline-treated and non-CK-elevating drug-treated group. The theophylline-treated and CK-elevating drug-treated group showed about 100% higher serum CK levels 225 IU L ; than any other group 102-124 IU L ; , and no increase in the serum theophylline level. This result indicates that there is a synergistic effect of theophylline and CK-elevating drugs on the serum CK level. The combined treatment of theophylline and CK-elevating drugs induces a synergistic increase in the serum CK level, indicating not pharmacokinetic but pharmacodynamic interactions with these drugs. J. Med. Invest. 47 : 9-13, 2000 Key words : theophylline, creatine kinase, drug interaction.
TABLE 5. Histamine resistance of pertussis-senisitized or propranolol-pretreated mice after administration of theophylline, epinephrifle, or 3', 5'-AMP.
The solid state of the active pharmaceutical ingredient may influence the pharmaceutically relevant physicochemical properties including the dissolution rate, flowability, compressibility, and stability both physical and chemical ; . Conventionally, material characterization studies are restricted to the raw materials. Phase transitions may occur during the various processing steps involved in the preparation of a pharmaceutical formulation ie, milling, granulation, drying, and compaction ; and also at the time of storage. In recent years, there has been an increased regulatory interest to characterize and to control the physical form of active pharmaceutical ingredients in dosage forms.1 In pharmaceutical materials, phase transitions are often mediated by water. Water can associate with solids in a variety of ways. In case of hydrates, water is usually incorporated in the lattice in stoichiometric proportions. Water may also be adsorbed on the solid surface or sorbed in the disordered regions of the lattice. In the latter case, the amount of water held is variable and depends on the method of preparation of the solid and storage conditions. Distinguishing between the different states of water in solids is an analytical challenge. There are 2 commonly used methods for determination of water content in solids--Karl Fischer titrimetry and thermogravimetry. Both these methods are suitable to quantify the total water in a sample and do not readily distinguish between sorbed physically bound ; and lattice water. The water-solid interaction is expected to be much stronger when water exists in the crystal lattice in stoichiometric proportions, rather then in a sorbed state. If water removal is performed under carefully controlled conditions, it might be possible to differentiate between the physically bound and lattice water in a crystalline solid. Moreover, the activation energy for water removal is expected to be different for the 2 cases and albenza.
The vasodilatory effects of dipyridamole are abolished by administration of the adenosine receptor antagonist theophylline.
A central mechanism appears to be responsible for theophylline's ability to reduce central sleep apnea in patients with heart failure and albendazole.
BRONCHODILATOR RESPIRATORY INHALANTS * fluticasone pirbuterol flunisolide salmeterol ipratropium terbutaline metaproterenol theophylline montelukast tiotropium nedocromil triamcinolone oxtriphylline zafirlukast zileuton * Solutions for nebulizers are not covered. SINUSITIS acrivastine-pseudoephedrine clemastine phenir-ppa-phenylt.-pyrilamine azatadine phenylephrine-promethazine brompheniramine w wo combinations dexchlorpheniramine phenylprop-pyril-pheniramine budesonide diphenhydramine phenyltolox-APAP carbinoxamine fexofenadine phenyltolox-pyril-pheniramine cetirizine mometasone promethazine chlorpheniramine w wo combinations naphazoline w wo combinations triprolidine OPHTHALMOLOGY acetylcholine dipivefrin medrysone apraclonidine dorzolamide metipranol atropine dorzolamide-timolol pilocarpine brimonidine ecothiopate prednisolone brinzolamide homatropine rimexolone carbachol latanoprost timolol cyclopentolate levobunolol tropicamide w wo hydroxyamphetamine cyclopentolate-phenylephrine loteprednol INSULIN acarbose glyburide repaglinide acetohexamide insulin rosiglitazone chlorpropamide metformin tolazamide glimepiride miglitol tolbutamide glipizide pioglitazone ANCILLARY DEVICES glucose monitor - limit one lancets lancet devices spacers aerochambers glucose test control solution peak flow meter syringes needles glucose test strips albuterol albuterol-ipratropium beclomethasone bitolterol budesonide cromolyn dyphylline Reimbursable only with a prescription for an injectable drug covered by ADAP. INFLUENZA amantadine oseltamivir rimantadine zanamivir ANTIRETROVIRAL THERAPY tipranavir Aptivus ; enfuvirtide Fuzeon, T-20 ; PCP & TOXOPLASMOSIS atovaquone Mepron ; HEMATOLOGICAL INDICATIONS epoetin alfa filgrastim sargramostim immune globulin Rho Win Rho SDF ; oprelvekin Neumega ; GYNECOLOGICAL estrogens estrogens-progestins progestins DRUGS REQUIRING PRIOR AUTHORIZATION Call 1-800-832-5305 to initiate the prior authorization process. Call 1-800-832-5305 to initiate the prior authorization process. Third line prophylaxis or treatment for PCP and Toxoplasmosis, due to high cost. For AIDS related anemia, with: Hct 30% and or Hgb 10g dl. For severe neutropenia due to: chemotherapy; or drug toxicity or HIV disease. With ANC 500 mm3. For HIV-associated thrombocytopenia; with platelets 20, 000 mm3. Prior authorization is not required for children. For chemotherapy induced thrombocytopenia; with platelet count 20, 000 ul. and or documented risk factors or clinical indications. URINARY INCONTINENCE flavoxate oxybutynin tolterodine.
We have explained before that criticisms of the quality of mammograms in the study are unwarranted not only because of the excellent mammographic sensitivity achieved in the second Canadian national breast screening study, 2 but also because of rates of cancer detection that even now are not being exceeded in programmes using "modern mammography."3 4 In the second study, for women allocated to receive mammography and clinical breast examination, the detection rate at first screen was 7.2 1000, and at subsequent screens 3.0 1000. Mammography alone or together with physical examination detected 76% and 84%, respectively, of these cancers. But perhaps most telling is that for small invasive cancers smaller than 15 mm in size ; , the rate at the first screen was 1.8 1000 and at subsequent screens 1.1 1000. Furthermore, of 267 invasive breast cancers found in our mammography arm by screening, 126 47% ; were found by mammography alone. In spite of mammography detecting small cancers two to five years earlier compared with when the catchup occurred in women screened by physical examination alone, and in spite of mammography detecting more breast cancers, there was no effect on the breast cancer death rate after 13 year follow up.3 Obviously mammography in the second Canadian national breast screening study found small cancers with a "good prognosis, " which probably grow slowly and are easy to treat even if they are found later by skilled physical examination by a health professional or by self examination. Unfortunately, the mammographically detected cancers with a "good" prognosis do not affect mortality from breast cancer. Many will not be persuaded by such arguments, especially those who believe the second Canadian study was designed to evaluate the efficacy of breast screening in this age group and disregard the fact that it was designed solely to evaluate the incremental benefit of mammography over and above clinical breast examination. For that reason, we enthusiastically support the call by Mittra et al for a randomised trial comparing mammography with physical examination, to which we would add self examination of the breast, as there is evidence from other analyses of the Canadian study that self examination does contribute to a reduction in mortality from breast cancer if done well.5 and spironolactone.
Theophylline or aminophylline
BRONCHODILATOR 17 Stimulates the central nervous system at the cortex or bronchial dilation results from stimulation of beta receptors. N V, anorexia, GI bleed, epigastric pain, restlessness, anxiety, headache, hypertension, palpitation, tachycardia, arrhythmias, circulatory failure, tachypnea, poly & dysuria, diuresis, bronchospasm especially with inhalation treatment ; , muscle cramps, hypokalemia, tremor, insomnia, dry mouth. Also with formoterol- pruritis, rash, urticaria. Renal, cardiac, or hepatic disease, pregnancy, lactation, thyrotoxicosis, diabetes. Antidepressants, adrenergics, CNS stimulants, antihistamines, levothyroxine, antihypertensives. Also with albuterol- levodopa, caffeine, quinidine, procainamide, potassium wasting diuretics. ENZYME 18 Decreases nitrogen, fat content of stool, assists in digestion of starch, protein, fats. Replace or stimulate production of enzyme for deficiency. Anorexia, N V D, buccal anal soreness, hyperuricosuria. Asthenia, injection site pain, dizziness, headache, somnolence, fever, liver enzyme elevation; paresthesia, pruritis, allergic reaction, infection AI-PI: hypersensitivity; reaction to alpha I proteinase inhibitors AI-PI IgA deficiency with IgA antibodies Oral iron may inhibit the absorption. Cimetidine may enhance the effect. HEMATOPOIETIC AGENT 19 Human granulocyte stimulating factor GCSP ; granulocyte macrophage colony stimulating factor GMCSF ; are produced by recombinant DNA technology. GCFS regulates the product of neutrophils within bone marrow. GMCSF stimulates proliferation and differentiation of hematopoetic progenitor cells. Erythropoietin stimulates red blood cell production. N V, skeletal pain, alopecia, diarrhea, neutropenic fever, mucositis, fever, fatigue, anorexia, headache, cough, skin rash, chest pain, general weakness, sore throat, stomatitis, constipation, unspecific pain. Allergies to E-Coli or yeast products. GCSF or GMCSF should not be used in the period 24 hours prior to or 24 hours after administration of cytotoxic chemotherapy. Use with precaution in any malignancy with myeloid characteristics. Erythropoietin should not be used in patients with uncontrolled hypertension. Pegfilgrostim: Lithium potentiates neutrophil release. IMMUNE GLOBULIN 20 Replacement therapy for 10 and 20 immunodeficiencies; Interface with the fc receptors. Anaphylactic hypersensitivity can occur, especially in lgA-deficient patients. Flushing of face, tightness in chest, chills, fever, dizziness, nausea, diaphoresis, headache, hypotension, urticaria. lgA-deficient patients. Avoid use in patients with C1c1 mL minute. Monitor rate of infusion, symptoms of anaphylaxis throughout administration. Anaphylaxis meds should be available. * Preparations are not generically equivalent or readily interchanged. IMMUNOSUPPRESSANT IMMUNOMODULATOR 21 Inhibit cell-mediated immune responses to reduce prevent allograft rejection of organs, bone marrow. Asathioprine inhibits RNA DNA synthesis resulting in immunosuppression. OKT3 reverses graft rejection. Glatiramer acetate decreases MS exacerbation. MAB's target specific immune response. N V D, fever, chills, headache, joint pain, stomatitis, dermatitis, leukopenia, thrombo-cytopenia, increased clotting time azothiaprine ; , hepatotoxicity, nephrotoxicity, alopecia, retinopathy, hypertension, hypo hyperkalemia, carcinogenesis, aggravation of diabetes, increased appetite, altered mental status OKT3 ; , decreased fertility. Glatiramer acetate: transient chest pain, vasodilation, anxiety, hypertonia, asthenia, infection. Hypersensitivity to drug, hypersensitivity to castor oil, pregnancy, lactation, hepatic dysfunction, seizure history, use of multiple immunosuppressant agents, ketoconazole, erythromycin, prednisolone, methylprednisolone, ditilazem, potassium-sparing diuretics, rifampin, phenytoin, phenobarbitol, vaccines, toxoids, oral anticoagulants, skin tests, radioactive iodine, sulfamethoxazole trimethoprim IV only ; , barbiturates, allopurinal, methotrexate, neuromuscular blockers, ACE inhibitors, aminoglycosides, cisplatin, carbamazepine, antifungals, bromocriptime, cimetidine, danazol, metoclopramide, calcium channel blockers, clarithromycin. Alefacept: vaccinations. INTERFERON 22 The phagocytic activity of macrophages is enhanced. Cell proliferation is suppressed. Various stages of virus replication are inhibited as a result of reprogramming of cells. Nonspecific mechanisms decrease MS exacerbation. Peginterferon: treatment of HCV infection. Fever, fatigue, myalgia, dizziness, weakness, confusion, paresthesia, leukopenia, neutropenia, thrombocytopenia, anorexia, nausea, diarrhea, rash, dry skin, pruritus, partial alopecia, hypotension, edema, hypertension, pulmonary edema, arrythmias, weight loss, change in taste, diaphoresis, headache, abdominal pain. Hypersensitivity to alpha interferons. Pregnancy, cardiac disease, renal hepatic disease, seizure disorder. Peginterfero C I in neonates infants due to benzyl alcohol. ACE inhibitors, 5FU, melphalan, prednisone, theophylline, warfarin, zidovudine, clozpine.
Normal serum theophylline range
For 5-HTj receptors Leysen et al. 1981 ; , failed to block the Cl~ conductance Fig. 2 ; . Therefore, the Cl~ conductance is not coupled to a 5-HTj receptor. Micromolar concentrations of the highly selective 5-HT2 antagonists ketanserin Leysen et al. 1982 ; and cyproheptadine McCall and Aghajanian, 1980 ; were also without effect on the Cl~ conductance. Higher, and therefore less specific, concentrations of cyproheptadine 100 imoll" 1 or more ; can block the Cl~ conductance Drapeau and Sanchez-Armass, 1988 ; and Cl~-dependent responses in vivo in the leech Sawada and Coggeshall, 1976 ; . These results argue against a 5-HT2 receptor for the Cl~ conductance. Recently, drugs specific for 5-HT3 receptors have been developed Peroutka, 1988 ; . One of the first and best studied of these is ICS 205-930 Richardson et al. 1985 ; . As can be seen in Fig. 2, lO moU" 1 ICS 205-930 in the superfusion solution was without effect. In addition, 100 jumol P 1 ICS 205-930 applied by pipette did not elicit a response not shown ; . These results argue against a role for a 5-HT3 receptor in the Cl~ conductance. In conclusion, the receptor mediating the effect of 5-HT on the Cl~ conductance does not have a pharmacological profile consistent with that of any of the mammalian classes of 5-HT receptors. Second messengers The activation of the Cl~ conductance by applied and synaptically released 5-HT is slow and long-lasting Fuchs et al. 1982; Henderson, 1983; Drapeau and Sanchez-Armass, 1988 ; . For example, the onset of the postsynaptic current in P cells innervated by serotonergic Retzius cells is delayed by about 10 ms following the presynaptic action potential, reaches a peak after 20-50 ms and declines along a biexponential time course with time constants of about 70 and about 600 ms Drapeau and Sanchez-Armass, 1988 ; . Sustained responses to 5-HT in neurones are generally due to the actions of second messengers Kehoe and Marty, 1980; Kaczmarek and Levitan, 1987; Bobker and Williams, 1990 ; . The effects on the Cl~ conductance of agents known to modify the activity of protein kinases were tested to determine the possible regulation by second messengers. An important criterion for the effects of activating compounds was that they should develop over a similar time course to the effects of 5-HT, i.e. with a delay of less than 100 ms and a prolonged effect following brief application. Application of 1 mmol T 1 dbcAMP for 500 ms onto a P cell superfused in TrisCl solution, resulted in the rapid activation of a prolonged current with a reversal potential near the resting potential approx. -- 50mV ; , similar to that observed for the Cl~ conductance Drapeau and Sanchez-Armass, 1988 ; . This effect was more pronounced when the phosphodiesterase inhibitor theophyllone l m m was included with the dbcAMP Fig. 3A ; . In addition to the Cl~ conductance, dbcAMP, but not 5-HT, activated a non-selective cation conductance permeant to Tris, unlike the cationic conductance described below, and impermeant to TEA"1" S. Sanchez-Armass, in preparation ; . Consequently, the Cl~ conductance activated by dbcAMP was more apparent in TEA + solution 14 17 cells tested ; than and glimepiride.
Asthmatics use it, but i still doubt that all of the theophyllinr brands are being discontinued.
Subject population the potential for severe interactions was lessened, because drugs known to have both a narrow therapeutic margin and high potential for metabolic interaction were not commonly used. These include the tricyclic antidepressants, theophylline, phenytoin, tolbutamide, carbamazepine, terfenadine, astemizole, Type IC antiarrhythmics, and antipsychotics.5 Alternatively, it may be that recent advertising and educational efforts have improved clinical practice. Finally, it may reflect local culture; it is our impression that overall sensitivity to this issue at our own institution is high. In support of this idea is the frequency with which sertraline was being prescribed by the consulting services see Table 3 ; . When an SSRI antidepressant seems indicated, our consultation-liaison service almost invariably recommends sertraline in those patients on a large number of medications because of the perception of its lower risk of drug interactions. It would appear that the consulting services were already aware of our preferences in this regard. The potential for P450 drug interactions in patients seen on the consultation-liaison service is significant, necessitating increased vigilance on the part of consultation-liaison psychiatrists and extensive educational efforts for both psychiatric physicians and nonpsychiatric physicians. The authors thank the anonymous reviewer for the very thorough and helpful comments and anacin.
Theophylline xanthine
Table 7.4 summarises the changes seen in the cerebral NIRS signals and the blood pressure for all three groups from baseline to head-up tilt, for example, rheophylline asthma.
In addition, low-dose ICS 200 g d of fluticasone or 400 g d of budesonide ; appears to be safe.50 52 At low dose there is no significant effect on long-term linear growth or adrenal suppression. However, with higher doses the risk of adverse effects due to systemic absorption increases.53, 54 Although many ICS preparations, such as fluticasone or budesonide, are either poorly absorbed from the gastrointestinal tract or metabolized to inactive forms or both ; , much of the ICS dose is absorbed systemically through the respiratory epithelium.55 An important challenge in managing pediatric asthma is what to do with the child who has moderate persistent asthma and has failed to achieve adequate asthma control with low-dose ICS. Current choices for management include increasing the ICS dose or adding a nonsteroidal medication to the regimen, such as a leukotriene receptor antagonist LTRA ; , a long-acting agonist LABA ; , or even theophylline. The optimum choice remains controversial, and there are as yet incomplete data on which to make a decision. Increasing the ICS dose as a management strategy assumes that there is a dose-dependent effect on disease control. Several studies provide data that there is indeed improved pulmonary function, symptom control, prevention of acute exacerbations, and reduced airway hyperresponsiveness with higher doses of ICS.56 58 But some studies have not demonstrated such an effect, and the differences may be due to the type of outcomes measured or the stimulus used to induce asthma symptoms.59, 60 In all cases, however, the dose-response curve appears to flatten at relatively low doses of ICS. There is little evidence to support doses higher than 800 g of budesonide or beclomethasone or 400 g per day of fluticasone in improving pulmonary function or decreasing airway hyperresponsiveness.61 Higher doses are likely to result in substantial suppression of cortisol secretion, without meaningful further improvement in asthma control. Some of the difficulty in measuring dose-response to ICS comes from the interindividual variability in response. In several studies, 25 40% of individuals treated with low to moderate doses of ICS failed to show significant improvement in FEV1.62 64 These patients may either be refractory to the effects of ICS or require higher doses. Other markers of disease activity or airway inflammation, such as exhaled nitric oxide or sputum eosinophilia, are not yet standardized in interpretation.47 It has been suggested that it may be possible to predict the response to ICS using baseline markers of pulmonary function and markers of inflammation. Patients with lower baseline FEV1, greater airway hyperresponsiveness as measured by methacholine challenge ; , or higher levels of exhaled nitric oxide may be more likely to respond to low to moderate doses of ICS.65 However, further studies on larger numbers of patients are needed to confirm these results and panadol.
Fig. 2. Median of the percentage of days and nights without additional use of rescue salbutamol during two run-in weeks and four active treatment weeks, in subjects treated with salmeterol 50 g b.i.d. ; or with an individually titrated dose of oral theophylline. The increase in the percentage of nights with no additional medication from the second run-in week to active treatment weeks was significantly greater for salmeterol than for theophylline. : run-in; : treatment!
Five additional studies attempted to clarify the issue of whether MSG induces bronchospasm in asthmatics Table 1 ; . A study by Moneret-Vautrin 1987 ; reported 2 of 30 asthmatic patients undergoing oral challenges with MSG 2.5 g ; developed asthmatic reactions. The author studied patients in a single-blind, placebo-controlled protocol and used declines in PEFR determinations as evidence for asthma attacks. The patients were observed, and hourly PEFR determinations were obtained for 12 h. The two "reactors" were not rechallenged in a double-blind protocol. Furthermore, both patients exhibited wandering baseline PEFR values during their placebo challenges, such that the differences between placebo and MSG PEFR determinations were difficult to detect. One of the two "reactors" was alleged to be sulfite sensitive but "ate frequently in Chinese restaurants without incident." It is not stated whether any other patients had or had not previously experienced asthma attacks in oriental restaurants. The study protocol was unique in that corticosteroid therapy was discontinued 21 d before and theophylline therapy was terminated 3 d before challenges. Because 10 study subjects were said to be intolerant of aspirin and nonsteroidal anti-inflammatory drugs, and another 7 were allergic to house dust, discontinuing antiasthmatic therapy could have led to airway instability and acetaminophen.
159Fluoxetine 160Imipramine Medicines in bipolar disorders 161Lithium carbonate Medicines in anxiety 162Alprazolam MEDICINES ACTING ON RESP.TRACT. Anti-asthma medicines 163Beclomethasone dipropionate 164Salbutamol sulphate 165Salmeterol 166Theophylline compounds Anti-tussive 167Codeine 168Dextromethorphan VITAMINS AND MINERALS 169Calcium salts 170Multivitamin combinations. 171Nicotinamide 172Pyridoxine 173Riboflavine A 176VitaminD3 ergocalciferol.
Theophylline tablet
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NON SELF-ADMINISTERED INJECTABLE DRUGS Drug Name STREPTASE SUBLIMAZE SUFENTANIL CITRATE SUPPRELIN SYNERCID SYNTHROID TAGAMET IN SODIUM CHLORIDE TALWIN TAXOL TAZICEF IN DEXTROSE TE ANATOXAL BERNA TENORMIN I.V. TEQUIN BAG TEQUIN VIAL TERRAMYCIN TESTOSTERONE PROPIONATE TETANUS TOXOID FLUID ; THAM THEOPHYLLINE IN 5% DEXTROSE THERACYS THORAZINE THROMBATE III THYMOGLOBULIN TICAR TICE BCG TIMENTIN TNKASE TORADOL TOTACILLIN-N TRAVASOL TRAVASOL TRAVASOL W DEXTROSE TRAVERT TRAVERT IN NORMAL SALINE TRAVERT-1 2NORMAL SALINE W KCL TRAVERT-ELECTROLYTE Generic Name streptokinase fentanyl citrate sufentanil citrate histrelin acetate quinupristin dalfopristin levothyroxine sodium cimetidine hcl normal saline pentazocine lactate paclitaxel semi-synthetic ceftazidime dextrose tetanus toxoid adsorbed atenolol gatifloxacin dextrose 5%-water gatifloxacin oxytetracycline testosterone propionate tetanus toxoid fluid tromethamine theophylline dextrose 5%-water bcg vaccine chlorpromazine hcl antithrombin iii, human lymphocyte immune globulin rabbit ticarcillin disodium bcg vaccine ticarcillin k clavulanate tenecteplase ketorolac tromethamine ampicillin sodium amino acids 85% amino acids 5.5% amino acids in dextrose inverted sugar inverted sugar 10% normal saline inverted sugar 10% normal saline 0.9% potassium chloride electrolyte inv sugar Drug Tier 5 Requirements Limits PA.
TABLE 3. Mean urinary recovery of theophylline and its metabolites and clomipramine and theophylline.
The fda recommends, healthcare professionals are advised to carefully weigh the potential risks and benefits of using in women during pregnancy and to discuss these findings as well as treatment alternatives with their patients 1.
AAPS PharmSciTech 2004; 5 1 ; Article 8 : aapspharmscitech ; . powder dissolution behavior was influenced by processing, drug dissolution at longer intervals 30 and 50 minutes ; remained unaffected Figures 7 and 8 ; . Since all the processed anhydrate samples exhibited similar powder dissolution behavior, the observed differences in tablet dissolution could be attributed to the effect of compression with the most significant effect occurring in the samples subjected to granulation and drying. Figure 8 presents the effects of processing on the dissolution behavior of anhydrous theophylline tablets. The least amount of drug was in solution in the AMA formulation. The decrease in anhydrate crystallinity was brought about by dehydration during drying and resulted in hard tablets. The formation of hard tablets coupled with the rapid conversion to theophylline monohydrate, particularly on the tablet surface, effectively impeded medium penetration into the tablet interior. As a result, the disintegration time is considerably longer Table 2 ; . While the crystallinity of AMAV90 is comparable to that of the unprocessed drug Table 1 ; , only the AMAV90 had undergone anhydrate hydrate anhydrate transition. This sample "history" seems to be responsible for the higher water affinity transformation rate constants in Table 1 ; and, as a consequence, the longer disintegration time Table 2 ; . While the difference in disintegration times translated to small differences in the initial dissolution profiles data not shown ; , the percentage drug dissolved from the AMAV90 tablets was virtually identical to that of the unprocessed drug tablets at 50 minutes Figure 8 ; . When compared with AMA, AMAV90 converted to hydrate at a slower rate Table 1 ; indicating that tablet disintegration preceded substantial surface hydrate formation. When compared with the unprocessed drug, milling for 30 minutes A30 ; caused a pronounced decrease in the degree of crystallinity, increase in surface area and consequently, an increase in the anhydrate hydrate transformation rate constant Table 1 ; . The increased affinity for water could be responsible for the longer disintegration time Table 2 ; . Again, a comparison of this milled sample A30 ; with the dried granules AMAV90 ; provides insight into the effect of sample history. While these 2 samples have nearly the same affinity for water transformation rate constant; Table 1 ; , the AMAV90 tablets have a longer disintegration time. This is particularly noteworthy because AMAV90 also exhibited no amorphous character. In this context, it is also useful to compare the milled anhydrate A30 ; with the granules dried at 50C AMA ; . While both these processing conditions resulted in a loss in crystallinity Table 1 ; , as postulated earlier, the milling-induced decrease in crystallinity may have occurred predominantly on the particle surface, and dehydration was expected to affect both the surface and the bulk. Their differences in affinity for water Table 1 ; might be responsible for the very pronounced differences in disintegration time Table 2 ; and dissolution behavior Figure 8 ; . While a decrease in the crystallinity of the anhydrate could be brought about either by milling A30 ; or by dehydration AMA ; , the effect of these processing conditions on tablet hardness showed pronounced differences. While milling seemed to have a small effect on tablet hardness Table 2 ; , the tablets with the highest hardness were obtained using dried granules AMA ; . Earlier, we had postulated that, when compressed, amorphous compounds predominantly undergo plastic deformation, resulting in hard tablets. This postulate does not seem to hold true when the amorphous character is introduced by milling A30 ; . Mechanical stress is known to result in plastic deformation of anhydrous crystalline theophylline.30 When this material is again subjected to a mechanical stress compression ; , the likelihood of plastic deformation is substantially reduced. As a result, the tablet hardness is comparable with that of the unprocessed anhydrate Table 1 ; . If the above reasoning is correct, then subjecting AMA granules to mechanical stress before they are compressed should decrease the likelihood of plastic deformation during compression and the consequent formation of hard tablets. Hence, AMA granules were milled for 10 minutes and compressed AMA10; Table 2 ; . The resulting tablets had lower hardness values and shorter disintegration times Table 2 ; , and consequently more rapid dissolution than the AMA formulation Figure 8 ; . These results suggest that plastic deformation during compression was unlikely and therefore must have occurred during milling. While a decrease in crystallinity can be brought about either by milling or by granulation, the effect on product performance meas and aralen.
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The dental office has proved to be ineffective; or 2 ; Has one or more medical conditions that would create significant or undue medical risk for the individual in the course of delivery of an necessary dental treatment or surgery if not rendered in a hospital or ambulatory surgical center. Prosthetic devices and breast reconstructive surgery incident to the mastectomy. Post-surgical mastectomy care: 1 ; Inpatient hospital coverage for mastectomies that is determined by the treating physician to be medically necessary in accordance with prevailing medical standards and after consultation with the insured patient. 2 ; Outpatient postsurgical follow-up care in keeping with prevailing medical standards by a licensed health care professional qualified to provide postsurgical mastectomy care. The treating physician, after consultation with the insured patient, may choose that the outpatient care be provided at the most medically appropriate setting, which may include the hospital, treating physician's office, outpatient center, or home of the insured patient. Diagnosis and treatment of osteoporosis for high-risk individuals, including, but not limited to, estrogen-deficient individuals who are at clinical risk for osteoporoses, individuals who have vertebrae abnormalities, individuals who are receiving long-term glucocorticoid steroid ; therapy, individuals who have primary hyperparathyroidism and individuals who have a family history of osteoporosis. Treatment of cleft lip and cleft palate for a Dependent child to include medical, dental, speech therapy, audiology, and nutrition services only if such services are prescribed by the treating physician or surgeon and such physician or surgeon certifies that such services are medically necessary and consequent to treatment of the cleft lip or cleft palate. Coverage required by this section is subject to terms and conditions applicable to other benefits.
Drug theophylline
The American Contact Dermatitis Society's Annual Meeting certifies that this educational activity has been recognized for a maximum of 6 credit hours in Category I and may be applied towards the American Academy of Dermatology Continuing Medical Education Award. Program: 532-100.
1. Koch-Wesser J. Serum drug concentrations as therapeutic guides. N Engl J Med 1982; 287: 227-31. Benet LZ, Goyan JE. Bioequivalence and narrow therapeutic index drugs. Pharmacotherapy 1995; 15: 433-40. Dahlquist R, Billing B, Miners JO, Birkett DJ. Nonlinear metabolic disposition of theophylline. Ther Drug Monit 1984; 6: 290-7. Markham A, Faulds D. Theophyllinw A review of its potential steroid sparing effects in asthma. Drugs 1998; 56: 1081-91. Flink JN, Levy MB, Conard E. Study of two controlled release theophylline preparations. J Med 1990; 25: 58-61. Weinberger M, Hendeles L, Brighley L. The relation of product formulation to absorption of oral theophylline. N Engl J Med 1978; 299: 852. Centre for Drug Evaluation and Research, U.S. Department of Health and Human Services Food and Drug Administration: Guidance for Industry: Bioavailability and Bioequivalence Studies for Orally Administered Drug Products-General Considerations. 2003. 8. Subramaniam S, Garg SK, Dhand R, Malik SK, Sharma PL. Measurement of plasma theophylline concentration by HPLC. Bull P.G.I. 1986; 20: 20-5. Shah VP, Midha KK, Dighe S, McGilveray IJ, Skelly JP, Yacobi A, et al. Conference Report: Analytical Method Validation: Bioavailability, Bioequivalence and Pharmacokinetic studies. Pharm Res 1992; 9: 588-92. Win Nonlin, Professional Edition, version 1.5, Pharsight Corp., 800 West Elcamino Real, Suite 200, Mountain View, CA 94040. 11. Bhandari P. Bioequivalence of two brands of sustained release theophylline. J Asso Phys India 1999; 47: 461. Centre for Drug Evaluation and Research, U.S. Department of Health and Human Services Food and Drug Administration: Guidance for Industry: Statistical Approaches to Establishing Bioequivalence-General Considerations. 2001.
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| Theophylline toxicity in dogsOur consumer healthcare business is one of the largest consumer health-care companies in the world. The increase in consumer healthcare revenues in 2003, as compared to the prior-year periods, was primarily due to the inclusion of Pharmacia products as well as: the 12% increase in 2003 in sales of Listerine mouthwash, which benefited from the recent U.S. launch of Natural Citrus flavor the favorable impact of the weakening of the U.S. dollar against major currencies.
Prevention Role of Healthcare Provider: Provide Selfhelp Tools Self-help tools describe diet, exercise, behavior modification tips, and infant and toddler feeding tips. I think the roots of childhood obesity are within the toddler age group where we are overfeeding our toddlers and allowing them to graze feed with their little bags of Goldfish or Cheerios and the Sippy cups they carry around.
Review of mircette in the Brand co-pay. category of contraceptives, oral. This medication is being removed from preferred status because the generic equivalent product, Kariva, is avaiable at at the generic co-pay. In a limited category.
| Nifedipine, diltiazem ; may interact with theophylline therapy with a resultant increase in serum concentration and potential for theophylline toxicity. Although the mechanism of this interaction is unknown, competitive hepatic metabolism has been proposed. This study evaluated the effect of verapamil on theophylline disposition and bronchodilator effects. Five non-smoking asthmatic males 22-32 years ; were studied in two phases separated by a minlnnsn of 7 days. Each volunteer received aminophylline 200 mg p0 q6h for 2 days alone and then concurrently with verapamil 80 mg P0 q6h for 2 days. Immediately prior to the ninth dose of each phase, blood was drawn and spirenetric measurements were obtained. Additional.
How long is medication theophylline shelf life
Speaking from the perspective of pathology, the reclamation of the body after the pervasive damage of alveoli inevitably leads to fibrosis of the lungs and loss of their respiratory function, for example, theophylline interaction.
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7. Provider's Name, Address and Telephone Harbor Home Health Care 3377 Enterprise Dr. Mt. Pleasant, MI 48858 989 ; 773-3333.
The study was funded in part by the European Commission Grant No 006153, National Institute of Health NIH NIAID ; Grant No AI27556 USA ; , and Nicolaus Copernicus University Intramural Grant No 513B Torun, Poland ; . The authors thank Dr. Carole A. Conn of the University of New Mexico for reading the manuscript and providing valuable comments and suggestions.
Solunum 1991; 16: 715-71 ; markham a, faudals theophylline: a review of its potential steroid sparing effects in asthma.
Cameron et at., 1997: and Kiyatkin and Rebec, 1998 ; . The microdialysis technique used in Experiment 4 would not distinguish subpopulations of DA neurons if they differed in their responses to atropine treatment. Recent in vivo neurochemical studies with greater temporal resolution voltammetry or microdialysis with 1-min samples ; showed that tonic elevations in the extracellular DA concentration in the Acc occur in response to cocaine or heroin selfadministration. Phasic fluctuations in the concentration of D A the Acc against a background of elevated DA levels are detectable with these techniques; the phasic fluctuations in DA levels are time-locked to the lever presses made in order to obtain drug reward. It is these phasic fluctuations in DA levels that are correlated to drugseeking behaviour rather than the large, tonic elevations in extracellular DA levels induced by cocaine or heroin Wise. 1993: Kiyatkin et al. 1993: Gratton and Wise!
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