Drug Interactions
Your healthcare professionals (e.g., doctor or pharmacist) may already be aware of any possible drug interactions and may be monitoring you for it. Do not start, stop or change the dosage of any medicine before checking with them first. This drug should not be used with the following medications because very serious (possibly fatal) interactions may occur: arbutamine, sibutramine. Do not take this medication if you are taking MAO inhibitors (e.g., furazolidone, isocarboxazid, linezolid, moclobemide, phenelzine, procarbazine, rasagiline, selegiline, tranylcypromine) or have used MAO inhibitors within the 2 weeks before, during or after treatment with this medication. In some cases a serious, possibly fatal drug interaction may occur. If you are currently using any of these medications listed above, tell your doctor or pharmacist before starting trimipramine. Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: anticholinergics (e.g., atropine, belladonna alkaloids), bronchodilators/decongestants (e.g., albuterol, epinephrine, phenylephrine), clonidine, certain drugs for high blood pressure (e.g., guanadrel, guanethidine, reserpine), drugs affecting liver enzymes that remove this medication from your body (e.g., cimetidine, haloperidol, protease inhibitors such as amprenavir/fosamprenavir/ritonavir, drugs that affect heart rhythm such as flecainide/quinidine/propafenone, SSRI antidepressants such as paroxetine), drugs for motion sickness (e.g., meclizine, scopolamine), stimulants (e.g., amphetamines, methylphenidate), St. Johns wort, thyroid medication. If you have been taking fluoxetine, wait at least 5 weeks after stopping fluoxetine before starting trimipramine. Also report the use of drugs which might increase seizure risk (decrease seizure threshold) when combined with this medication such as bupropion, isoniazid (INH), phenothiazines (e.g., thioridazine), theophylline, tricyclic antidepressants (e.g., amitriptyline) or tramadol, among others. Consult your doctor or pharmacist for details. 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., carbamazepine, phenytoin), medicines for sleep or anxiety (e.g., alprazolam, 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, diet aids, motion sickness) because they may contain drowsiness-causing ingredients, drying agents (anticholinergics) or stimulants/nasal decongestants that could increase your heart rate or blood pressure. Ask your pharmacist about the safe use of those products. Do not use nonprescription cimetidine for stomach problems. 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.