Drug interactions
Amitriptyline + Ephedrine
Severity: Moderate
Amitriptyline and Ephedrine: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Tricyclics can change the pressor response to ephedrine, which acts partly by releasing norepinephrine. The result may be an enhanced or reduced blood pressure response, with possible arrhythmias.
What this interaction means in plain words
Amitriptyline and Ephedrine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Amitriptyline belongs to Central Nervous System; Ephedrine belongs to Cardiovascular.
Why it happens
Tricyclics block norepinephrine reuptake and uptake of indirect sympathomimetics into adrenergic neurons.
What to do
Monitor blood pressure and heart rate, and titrate ephedrine in small doses. Be prepared to use a direct-acting agent if response is inadequate.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Other interactions of Ephedrine
- Ephedrine + Isocarboxazid Contraindicated
- Ephedrine + Phenelzine Contraindicated
- Ephedrine + Procarbazine Contraindicated
- Ephedrine + Rasagiline Contraindicated
- Ephedrine + Selegiline Contraindicated
- Ephedrine + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Amitriptyline with Ephedrine?
MediHelp rates the interaction as moderate. Amitriptyline and Ephedrine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Tricyclics can change the pressor response to ephedrine, which acts partly by releasing norepinephrine. The result may be an enhanced or reduced blood pressure response, with possible arrhythmias.
How serious is the interaction between Amitriptyline and Ephedrine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate, and titrate ephedrine in small doses. Be prepared to use a direct-acting agent if response is inadequate.
What other medicines interact with Amitriptyline?
MediHelp also lists interactions of Amitriptyline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Amitriptyline page.
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