Drug interactions

clozapine + smoking (nicotine replacement)

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.

Overview

Severity: Major · Evidence level: Moderate

Level shifts with smoking changes (CYP1A2 induction).

Mechanism of action

PAH-induced CYP1A2 induction.

Clinical management

Monitor levels when smoking status changes.

Drug reference

References

Frequently asked questions

Can I take clozapine with smoking (nicotine replacement)?

The interaction is rated: Major. Level shifts with smoking changes (CYP1A2 induction).

How serious is the interaction between clozapine and smoking (nicotine replacement)?

The interaction is rated: Major. Evidence level: Moderate.

How is the interaction between clozapine and smoking (nicotine replacement) managed?

Monitor levels when smoking status changes.

Why do clozapine and smoking (nicotine replacement) interact?

PAH-induced CYP1A2 induction.

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