Drug interactions
Pentazocine + Topiramate
Severity: Moderate
Pentazocine and Topiramate: 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
Both drugs can cause drowsiness and impaired concentration, and taken together the sedation and cognitive slowing may be more pronounced. The effect is generally manageable with dose adjustment.
What this interaction means in plain words
Pentazocine and Topiramate 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.
Pentazocine belongs to Musculoskeletal; Topiramate belongs to Central Nervous System.
Why it happens
Additive central nervous system depression.
What to do
Monitor for excess sedation, confusion and psychomotor impairment, and counsel patients about driving. Lower the dose of one agent if drowsiness is troublesome.
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 Pentazocine
- Calcium / magnesium / potassium / sodium oxybates + Pentazocine Contraindicated
- Olanzapine / samidorphan + Pentazocine Contraindicated
- Pentazocine + Phenelzine Contraindicated
- Pentazocine + Tranylcypromine Contraindicated
- Alfentanil + Pentazocine Major
- Alprazolam + Pentazocine Major
Other interactions of Topiramate
Frequently asked questions
Can I take Pentazocine with Topiramate?
MediHelp rates the interaction as moderate. Pentazocine and Topiramate 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. Both drugs can cause drowsiness and impaired concentration, and taken together the sedation and cognitive slowing may be more pronounced. The effect is generally manageable with dose adjustment.
How serious is the interaction between Pentazocine and Topiramate?
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 for excess sedation, confusion and psychomotor impairment, and counsel patients about driving. Lower the dose of one agent if drowsiness is troublesome.
What other medicines interact with Pentazocine?
MediHelp also lists interactions of Pentazocine with, for example, Calcium / magnesium / potassium / sodium oxybates, Olanzapine / samidorphan, Phenelzine. The full list is on the Pentazocine page.
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