Drug interactions
Pentazocine + Suvorexant
Severity: Moderate
Pentazocine and Suvorexant: 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 agents cause CNS depression. Together they can increase somnolence and impair psychomotor performance and next-day alertness.
What this interaction means in plain words
Pentazocine and Suvorexant 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; Suvorexant belongs to Central Nervous System.
Why it happens
Additive CNS depression from opioid receptor activity and orexin receptor antagonism.
What to do
Use the lowest effective doses and monitor for excess sedation. Consider lowering the suvorexant dose and warn patients about driving impairment.
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 Suvorexant
Frequently asked questions
Can I take Pentazocine with Suvorexant?
MediHelp rates the interaction as moderate. Pentazocine and Suvorexant 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 agents cause CNS depression. Together they can increase somnolence and impair psychomotor performance and next-day alertness.
How serious is the interaction between Pentazocine and Suvorexant?
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 excess sedation. Consider lowering the suvorexant dose and warn patients about driving impairment.
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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