Ranitidine Isoniazid

The following drugp have a decreased pharmacologic effect when administered with an antacid corticosteroids, digoxin, chlorpromazine, oral iron products, isoniazid, phenothiazines, ranitidine, phenytoin, valproic acid, and the tetracyclines. 

Drugs that may affect benzodiazepines include alcohol, antacids, barbiturates, cimetidine, disulfiram, fluoxetine, isoniazid, ketoconazole, metoprolol, oral contraceptives, narcotics, probenecid, propoxyphene, propranolol, ranitidine, rifampin, scopolamine, theophylline, and valproic acid. 

Antacids Tetracyciine, isoniazid, atenoioi, chiorpromazine peniciiiamine, digoxin, ranitidine Decreased absorption... 

Cronqvist, J. Nilsson-Ehle, I. Determination of acyclovir in human serum hy hi -performance liquid chromatography. J.Liq.Chromatogr., 1988, 11, 2593-2601 [serum non-interfering acetaminophen, allopurinol, baclofen, carbacholine, cefuroxime, chlorpropamide, cilastatin, cloxacillin, diazepam, di-cumarol, digoxin, flucloxacillm, furosemide, fusidic acid, fusidic, glipizide, heparin, hydrochlorothiazide, imipenem, insulin, isoniazid, ketoprofen, metronidazole, naproxen, perphenazine, phenytoin, prednisolone, propranolol, p3razinamide, p3ridoxine, ranitidine, rifampicin, rifampin, spironolactone, streptomycin, sulfamethoxazole, trimethoprim, warfarin]... 

Pharmacokinetic evidence su ests that neither cimetidine nor ranitidine interact with isoniazid. 

In 13 healthy subjects cimetidine 400 mg or ranitidine 300 mg, three times a day, for 3 days had no effect on the pharmacokinetics of a single 10-mg/kg dose of isoniazid. Neither the absorption nor the metabolism of... 

In a controlled study, 112 patients with pulmonary tuberculosis were treated in 2 groups, one with a daily regimen of rifampicin 10 mg/kg, isoniazid 300 mg and ethambutol 20 mg/kg and ranitidine 150 mg twice daily, and... 

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