NSAID (preferential COX-2 inhibitor)
Meloxicam and smoking: how tobacco affects the medication
Tobacco smoking is one of the most underappreciated drug-drug interactions in chronic medication. Compounds in tobacco smoke induce hepatic enzymes (especially CYP1A2) and can shift the plasma concentration of many medications, including Meloxicam (Meloxicam), enough to matter clinically at 7.5mg, 15mg.
How smoking affects Meloxicam
Polycyclic aromatic hydrocarbons in tobacco smoke induce CYP1A2 and to a lesser extent other CYP enzymes. For medications metabolised primarily by CYP1A2, smokers can have plasma levels 30–50% lower than non-smokers at the same dose. Whether Meloxicam is affected depends on its specific metabolic pathway. Meloxicam inhibits cyclooxygenase enzymes with a preference for COX-2 at low therapeutic doses.
Practical guidance
According to the prescribing information for Meloxicam, smoking status should be disclosed at every dose review of Meloxicam. Stopping smoking can paradoxically raise plasma levels of CYP1A2-metabolised medications enough to cause new-onset side effects within days, and may require a temporary dose reduction. The 7.5mg, 15mg starting strength assumed in the prescribing information is usually for non-smokers.
Frequently asked questions
Does smoking change how Meloxicam works? ▾
For medications metabolised by CYP1A2, yes — smokers may need higher doses or have reduced effect at standard 7.5mg, 15mg. Whether Meloxicam specifically is affected depends on whether Meloxicam uses CYP1A2. The prescribing information notes any documented interaction.
Will I need to adjust Meloxicam if I quit smoking? ▾
Possibly, if Meloxicam is one of the medications affected by CYP1A2 induction. Stopping smoking restores CYP1A2 to normal within days, raising plasma levels and potentially causing side effects. Discuss the timing of any dose adjustment with the prescriber when planning to quit.
Products containing Meloxicam
More on Meloxicam
- With alcoholMeloxicam and alcohol — is it safe to drink?
- With foodShould Meloxicam be taken with food?
- Side effectsMeloxicam side effects: common, rare and warning signs
- Dosage guideMeloxicam dosage guide: how much to take and when
- OnsetHow fast does Meloxicam start working?
- DurationHow long does Meloxicam last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.