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thioridazine - oral (cont.)

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: anticholinergic medications (e.g., belladonna alkaloids, atropine, scopolamine), carbamazepine, cabergoline, cisapride, duloxetine, guanethidine, guanadrel, lithium, mirabegron, medications for Parkinson's disease (e.g., levodopa, benztropine), pergolide, pindolol, propranolol, certain SSRI antidepressants (e.g., fluoxetine, fluvoxamine, paroxetine).Many drugs besides thioridazine may affect the heart rhythm (QT prolongation), including amiodarone, dofetilide, pimozide, procainamide, quinidine, sotalol, macrolide antibiotics (such as erythromycin), among others. Therefore, before using thioridazine, report all medications you are currently using to your doctor or pharmacist.Also report the use of drugs which might increase seizure risk (decrease seizure threshold) when combined with this drug such as isoniazid, haloperidol, theophylline, tramadol, or tricyclic antidepressants (e.g., amitriptyline, nortriptyline), among others.Tell your doctor or pharmacist if you also take drugs that cause drowsiness such as: certain antihistamines (e.g., diphenhydramine), anti-seizure drugs (e.g., phenytoin), medicine for sleep or anxiety (e.g., alprazolam, diazepam, zolpidem), muscle relaxants, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., chlorpromazine, risperidone, trazodone).Check the labels on all your medicines (e.g., cough-and-cold products) because they may contain drowsiness-causing ingredients. Ask your pharmacist about the safe use of those products.

Medically Reviewed by a Doctor on 4/16/2014


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