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Drug interactions

Cigarette smoking + Ropinirole

Severity: Moderate

Cigarette smoking and Ropinirole: 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

Smoking induces CYP1A2, which metabolizes ropinirole, so smokers have lower ropinirole exposure. Stopping smoking can raise levels and increase adverse effects.

What this interaction means in plain words

Cigarette smoking and Ropinirole 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.

Evidence level: Moderate

Why it happens

Polycyclic hydrocarbons in smoke induce CYP1A2, increasing ropinirole clearance.

What to do

Adjust the ropinirole dose to clinical response when patients start or stop smoking. Watch for nausea, dizziness and somnolence after cessation.

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 Cigarette smoking with Ropinirole?

MediHelp rates the interaction as moderate. Cigarette smoking and Ropinirole 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. Smoking induces CYP1A2, which metabolizes ropinirole, so smokers have lower ropinirole exposure. Stopping smoking can raise levels and increase adverse effects.

How serious is the interaction between Cigarette smoking and Ropinirole?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Adjust the ropinirole dose to clinical response when patients start or stop smoking. Watch for nausea, dizziness and somnolence after cessation.

What other medicines interact with Ropinirole?

MediHelp also lists interactions of Ropinirole with, for example, Amisulpride, Chlorpromazine, Droperidol. The full list is on the Ropinirole page.

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