Metronidazole Alprazolam

Also analyzed acebutolol, acepromazine, acetaminophen, acetazolamide, acetophenazine, albuterol, alprazolam, amitriptyline, amobarbital, amoxapine, antip5Tine, atenolol, atropine, azatadine, baclofen, benzocaine, bromocriptine, brompheniramine, brotizolam, bu-pivacaine, buspirone, butabarbital, caffeine, carbamazepine, cetirizine, chlorcyclizine, chlordiazepoxide, chlormezanone, chloroquine, chlorpheniramine, chlorpromazine, chlorpropamide, chlorprothixene, chlorthalidone, chlorzoxazone, cimetidine, cisapride, clomipramine, clonazepam, clonidine, clozapine, cocaine, codeine, colchicine, cyclizine, qyclo-benzaprine, dantrolene, desipramine, diazepam, diclofenac, diflunisal, diltiazem, diphenhydramine, diphenidol, diphenoxylate, dipyridamole, disopyramide, dobutamine, doxapram, doxepin, droperidol, encainide, ethidium bromide, ethopropazine, fenoprofen, fentanyl, flavoxate, fluoxetine, fluphenazine, flurazepam, flurbiprofen, fluvoxamine, fu-rosemide, glutethimide, glyburide, guaifenesin, haloperidol, homatropine, hydralazine, hydrochlorothiazide, hydrocodone, hydromorphone, hydroxychloroquine, hydroxyzine, ibuprofen, imipramine, indomethacin, ketoconazole, ketoprofen, ketorolac, labetalol, le-vorphanol, lidocaine, loratadine, lorazepam, lovastatin, loxapine, mazindol, mefenamic acid, meperidine, mephenytoin, mepivacaine, mesoridazine, metaproterenol, methadone, methdilazine, methocarbamol, methotrexate, methotrimeprazine, methoxamine, methyl-dopa, methylphenidate, metoclopramide, metolazone, metoprolol, metronidazole, mida-... 

Metronidazole does not interact with alprazolam, diazepam, lo-razepam, or midazolam. 

A study in healthy subj ects found that metronidazole 400 mg twice daily for 5 days had no effect on the pharmacokinetics of a single 100-microgram/kg intravenous dose of diazepam. Another study in healthy subjects found that metronidazole 750 mg had no effect on the pharmacokinetics of alprazolam or lorazepam. In vivo and in vitro studies have shown that metronidazole has no effect on the pharmacokinetics or pharmacodynamics of midazolam. Interactions with other benzodiazepines seem unlikely-... 

Blyden GT, Greenblatt DJ, Scavone JM. Metronidazole impairs clearance ofphenytoinbutnot of alprazolam or lorazepam, Clin Pharmacol Ther( 9%6) 39, 181. 

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