Drug interactions
Doxylamine + Pentazocine
Severity: Moderate
Doxylamine and Pentazocine: 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
Doxylamine is a strongly sedating antihistamine. With pentazocine, drowsiness and psychomotor impairment can be markedly increased.
What this interaction means in plain words
Doxylamine and Pentazocine 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.
Doxylamine belongs to Respiratory; Pentazocine belongs to Musculoskeletal.
Why it happens
Additive central nervous system depression.
What to do
Avoid combining with other sedatives where possible and monitor for excessive sedation. Counsel patients to avoid driving and alcohol.
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 Doxylamine
Frequently asked questions
Can I take Doxylamine with Pentazocine?
MediHelp rates the interaction as moderate. Doxylamine and Pentazocine 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. Doxylamine is a strongly sedating antihistamine. With pentazocine, drowsiness and psychomotor impairment can be markedly increased.
How serious is the interaction between Doxylamine and Pentazocine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining with other sedatives where possible and monitor for excessive sedation. Counsel patients to avoid driving and alcohol.
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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