Combined Hormonal Contraceptives and Rifampicin: Drug Interaction Guide

Quick answer: This is a major interaction — avoid combining Combined Hormonal Contraceptives and Rifampicin unless specifically directed by your doctor.

Interaction severity: Major — avoid combination

How Combined Hormonal Contraceptives interacts with Rifampicin

Rifampicin induces CYP3A4 and UGT enzymes that increase metabolism of estrogen and progestin components. This reduces contraceptive efficacy.

What you should do

Use a reliable non-hormonal contraceptive method during rifampicin treatment and for the recommended period after stopping.

Key facts

Severity

Major — avoid combination

Mechanism

Rifampicin induces CYP3A4 and UGT enzymes that increase metabolism of estrogen and progestin components. This reduces co...

Action

Use a reliable non-hormonal contraceptive method during rifampicin treatment and for the recommended period after stoppi...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Combined Hormonal Contraceptives and Rifampicin together?

No — this combination should generally be avoided. Use a reliable non-hormonal contraceptive method during rifampicin treatment and for the recommended period after stopping.

What is the severity of this interaction?

The interaction between Combined Hormonal Contraceptives and Rifampicin is classified as Major — avoid combination. Rifampicin induces CYP3A4 and UGT enzymes that increase metabolism of estrogen and progestin components. This reduces contraceptive efficacy.

What should I do if I'm prescribed both?

Use a reliable non-hormonal contraceptive method during rifampicin treatment and for the recommended period after stopping. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.