Drug interactions
Amitriptyline + Cevimeline
Severity: Moderate
Amitriptyline and Cevimeline: 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
Cevimeline is a muscarinic agonist used for dry mouth, and amitriptyline's antimuscarinic action can blunt its salivary effect. Amitriptyline itself causes dry mouth, so symptom control may be poorer. Cevimeline is also metabolized by CYP2D6, which amitriptyline may weakly inhibit.
What this interaction means in plain words
Amitriptyline and Cevimeline 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; Cevimeline belongs to Miscellaneous.
Why it happens
Pharmacodynamic opposition at muscarinic receptors, with possible minor CYP2D6 competition.
What to do
Assess whether salivary flow improves and watch for cholinergic adverse effects such as sweating and nausea. Consider a lower amitriptyline dose or an alternative antidepressant if dry mouth persists.
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 Cevimeline
- Atenolol-chlorthalidone + Cevimeline Moderate
- Atenolol + Cevimeline Moderate
- Atropine + Cevimeline Moderate
- Betaxolol + Cevimeline Moderate
- Bethanechol + Cevimeline Moderate
- Bisoprolol + Cevimeline Moderate
Frequently asked questions
Can I take Amitriptyline with Cevimeline?
MediHelp rates the interaction as moderate. Amitriptyline and Cevimeline 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. Cevimeline is a muscarinic agonist used for dry mouth, and amitriptyline's antimuscarinic action can blunt its salivary effect. Amitriptyline itself causes dry mouth, so symptom control may be poorer. Cevimeline is also metabolized by CYP2D6, which amitriptyline may weakly inhibit.
How serious is the interaction between Amitriptyline and Cevimeline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Assess whether salivary flow improves and watch for cholinergic adverse effects such as sweating and nausea. Consider a lower amitriptyline dose or an alternative antidepressant if dry mouth persists.
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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