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/antispasmodic drugs (such as atropine, dicyclomine, scopolamine), drugs that increase the amount of dopamine in your body (such as bromocriptine, cabergoline, levodopa, pergolide, ropinirole).Other medications can affect the removal of pimozide from your body, which may affect how pimozide works. Examples include aprepitant, azole antifungals (such as ketoconazole, itraconazole), delavirdine, HIV protease inhibitors (such as ritonavir, nelfinavir), hepatitis C virus protease inhibitors (such as boceprevir, telaprevir), macrolide antibiotics (such as azithromycin, erythromycin), nefazodone, SSRI antidepressants (such as fluvoxamine, paroxetine, sertraline), zileuton, among others.Tell your doctor or pharmacist if you are taking other products that cause drowsiness including alcohol, antihistamines (such as cetirizine, diphenhydramine), drugs for sleep or anxiety (such as alprazolam, diazepam, zolpidem), muscle relaxants, and narcotic pain relievers (such as codeine).Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain ingredients that cause drowsiness. Ask your pharmacist about using those products safely.Many drugs besides pimozide may affect the heart rhythm (QT prolongation). Examples include amiodarone, cisapride, citalopram/escitalopram, chlorpromazine, dofetilide, procainamide, quinidine, ranolazine, sotalol, macrolide antibiotics (such as clarithromycin, erythromycin), among others.Also report the use of drugs that might increase seizure risk when combined with pimozide, such as bupropion, isoniazid (INH), phenothiazines (such as promethazine), lithium, theophylline, or tricyclic antidepressants (such as amitriptyline), among others. Consult your doctor or pharmacist for details.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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