Drug interactions
Gabapentin + Protriptyline
Severity: Moderate
Gabapentin and Protriptyline: 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
Gabapentin and the tricyclic antidepressant protriptyline both cause sedation and cognitive impairment. Combined use may increase drowsiness, dizziness and psychomotor impairment, although protriptyline is among the less sedating tricyclics.
What this interaction means in plain words
Gabapentin and Protriptyline 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.
Why it happens
Additive pharmacodynamic CNS depression.
What to do
Start with low doses and titrate slowly while monitoring for sedation, dizziness and falls. Counsel the patient about driving and operating machinery.
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 Gabapentin
Frequently asked questions
Can I take Gabapentin with Protriptyline?
MediHelp rates the interaction as moderate. Gabapentin and Protriptyline 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. Gabapentin and the tricyclic antidepressant protriptyline both cause sedation and cognitive impairment. Combined use may increase drowsiness, dizziness and psychomotor impairment, although protriptyline is among the less sedating tricyclics.
How serious is the interaction between Gabapentin and Protriptyline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start with low doses and titrate slowly while monitoring for sedation, dizziness and falls. Counsel the patient about driving and operating machinery.
What other medicines interact with Gabapentin?
MediHelp also lists interactions of Gabapentin with, for example, Alprazolam, Amobarbital, Belladonna and opium. The full list is on the Gabapentin page.
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