DRUG INTERACTIONS: Your healthcare professional (e.g., doctor or pharmacist) may already be aware of any possible drug interactions and may be monitoring you for it. Do not stop or change the dosage of any medicine without checking with them first.This drug should not be used with the following medication because very serious interactions may occur: tetrabenazine.Taking MAO inhibitors with this medication may cause a serious (possibly fatal) drug interaction. Avoid taking MAO inhibitors (isocarboxazid, linezolid, methylene blue, moclobemide, phenelzine, procarbazine, tranylcypromine) during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before treatment with this medication. However, certain MAO inhibitors (rasagiline, selegiline) may be used with careful monitoring by your doctor. Ask your doctor when to start or stop taking this medication.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription products you may use, especially of: medications to treat high blood pressure (hypertension), other drugs to treat Parkinson's disease (including other drugs that contain levodopa, carbidopa, or entacapone), iron vitamins, tricyclic antidepressants (e.g., amitriptyline), phenytoin, papaverine, isoproterenol, adrenaline (epinephrine), norepinephrine, dopamine, dobutamine, alpha-methyldopa, apomorphine, isoetharine, bitolterol, probenecid, cholestyramine, metoclopramide, selegiline, certain antibiotics (e.g., erythromycin, ampicillin, rifampin, chloramphenicol).Also, report use of any medicine that can make you drowsy, such as: sedatives, tranquilizers, anti-anxiety medicine, anti-seizure drugs, narcotic pain relievers (e.g., codeine), psychiatric medicines, certain drowsiness-causing antihistamines (e.g., diphenhydramine).This medication can cause false results with urine glucose testing in diabetics. Blood glucose testing should be performed instead.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
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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