Drug interactions
Pregabalin + Protriptyline
Severity: Moderate
Pregabalin 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
Protriptyline is a tricyclic antidepressant with sedative and anticholinergic properties, and pregabalin adds drowsiness, dizziness and cognitive slowing. Falls and impaired alertness are the main concerns, particularly in older adults.
What this interaction means in plain words
Pregabalin 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
Use the lowest effective doses and monitor 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 Pregabalin
Frequently asked questions
Can I take Pregabalin with Protriptyline?
MediHelp rates the interaction as moderate. Pregabalin 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. Protriptyline is a tricyclic antidepressant with sedative and anticholinergic properties, and pregabalin adds drowsiness, dizziness and cognitive slowing. Falls and impaired alertness are the main concerns, particularly in older adults.
How serious is the interaction between Pregabalin 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: Use the lowest effective doses and monitor for sedation, dizziness and falls. Counsel the patient about driving and operating machinery.
What other medicines interact with Pregabalin?
MediHelp also lists interactions of Pregabalin with, for example, Alprazolam, Amobarbital, Belladonna and opium. The full list is on the Pregabalin page.
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