Doxepin interactions on FDA labels
These are pairs with Doxepin where an FDA label names an interaction, grouped by the desk's grade. A drug that isn't listed here hasn't been cleared as safe with Doxepin; it just isn't on this list. Open any pair in the desk to see it alongside other drugs.
Avoid together
- Doxepin and Isocarboxazid
Why this grade
Marplan (isocarboxazid) label, Contraindications
The Marplan (isocarboxazid) label lists this combination under Contraindications. CONTRAINDICATIONS: "Marplan should not be administered together with, or in close proximity to, other MAO inhibitors or dibenzazepine-related entities … Doxepin HCL" Named in the label: "Doxepin HCL" Retrieved from DailyMed 2026-10-19.
Marplan (isocarboxazid) label on DailyMed, for Doxepin and Isocarboxazid
Enzyme roles on the desk
Educational reference only. Not FDA-cleared. The Prescribing Information governs.
Drug and product names are trademarks of their owners and are used only to identify the products.