Drug interactions
Amitriptyline + Gepirone
Severity: Major
Amitriptyline and Gepirone: major 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
Both drugs have serotonergic activity and can prolong the QT interval, so combining them raises the risk of serotonin syndrome and arrhythmia. Gepirone labeling carries a QT-related contraindication and concerns with other QT-prolonging agents.
What this interaction means in plain words
Amitriptyline and Gepirone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Amitriptyline belongs to Central Nervous System; Gepirone belongs to Central Nervous System.
Why it happens
Additive serotonergic effects and additive QT prolongation; amitriptyline may also compete for CYP-mediated clearance.
What to do
Avoid the combination where possible and choose an alternative antidepressant. If used, obtain an ECG, monitor electrolytes, and watch for serotonin toxicity such as agitation, tremor, hyperthermia and clonus.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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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 Gepirone
- Clarithromycin + Gepirone Contraindicated
- Gepirone + Isocarboxazid Contraindicated
- Gepirone + Itraconazole Contraindicated
- Gepirone + Ketoconazole Contraindicated
- Gepirone + Linezolid Contraindicated
- Gepirone + Phenelzine Contraindicated
Frequently asked questions
Can I take Amitriptyline with Gepirone?
MediHelp rates the interaction as major. Amitriptyline and Gepirone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs have serotonergic activity and can prolong the QT interval, so combining them raises the risk of serotonin syndrome and arrhythmia. Gepirone labeling carries a QT-related contraindication and concerns with other QT-prolonging agents.
How serious is the interaction between Amitriptyline and Gepirone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible and choose an alternative antidepressant. If used, obtain an ECG, monitor electrolytes, and watch for serotonin toxicity such as agitation, tremor, hyperthermia and clonus.
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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