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Drug interactions

Desflurane + Pentazocine

Severity: Moderate

Desflurane 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

Opioids such as pentazocine reduce the concentration of inhaled anesthetic needed and add to respiratory and cardiovascular depression during and after anesthesia. This can prolong sedation and recovery.

What this interaction means in plain words

Desflurane 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.

Desflurane belongs to Central Nervous System; Pentazocine belongs to Musculoskeletal.

Evidence level: High

Why it happens

Additive central nervous system and respiratory depression, with opioid lowering of the anesthetic minimum alveolar concentration.

What to do

Titrate desflurane to clinical effect and anesthetic depth monitoring, and monitor ventilation and hemodynamics, including postoperatively.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Desflurane with Pentazocine?

MediHelp rates the interaction as moderate. Desflurane 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. Opioids such as pentazocine reduce the concentration of inhaled anesthetic needed and add to respiratory and cardiovascular depression during and after anesthesia. This can prolong sedation and recovery.

How serious is the interaction between Desflurane 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: Titrate desflurane to clinical effect and anesthetic depth monitoring, and monitor ventilation and hemodynamics, including postoperatively.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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