Cigarette smoking decreases blood levels of this medication. Tell your doctor if you smoke or if you have recently stopped smoking.
Many drugs besides desipramine may affect the heart rhythm (QT prolongation in the EKG), including amiodarone, dofetilide, pimozide, procainamide, quinidine, sotalol, sparfloxacin, macrolide antibiotics (such as erythromycin), among others. Therefore, before using desipramine, 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 medication such as bupropion, isoniazid (INH), theophylline, 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-anxiety drugs (e.g., diazepam), anti-seizure drugs (e.g., levetiracetam), drugs for motion sickness (e.g., meclizine).
Check the labels on all your medicines (e.g., cough-and-cold products) because they may contain drowsiness-containing ingredients or decongestants that could increase your heart rate or blood pressure. Ask your pharmacist about the safe use of those products.
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.
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