Ambien with the birth control pill
Many women of reproductive age take a combined or progestogen-only oral contraceptive while also using a chronic medication such as Ambien (Zolpidem). The combination is generally fine at 5mg, 10mg, 6.25mg CR, 12.5mg CR, but a small number of medications can reduce contraceptive efficacy meaningfully and need either a backup method or a switch.
How Ambien can affect contraceptive efficacy
Combined and progestogen-only contraceptives are metabolised through CYP3A4. Strong CYP3A4 inducers (some antiepileptics, rifampicin, St John's Wort) lower contraceptive plasma levels and reduce efficacy. Whether Zolpidem acts on CYP3A4 determines whether Ambien affects contraception. Most agents in Sleep Aids and Hypnotics have no clinically meaningful effect on the pill at 5mg, 10mg, 6.25mg CR, 12.5mg CR.
Practical guidance
According to the prescribing information for Zolpidem, women on hormonal contraception should review Ambien with the prescribing pharmacist or doctor. Where an interaction is documented, additional barrier contraception or switching to a non-oral method (IUD, implant) for the duration of Ambien therapy is the standard mitigation.
Frequently asked questions
Will Ambien make my pill less effective? ▾
Most Sleep Aids and Hypnotics medications at 5mg, 10mg, 6.25mg CR, 12.5mg CR do not affect oral contraceptive efficacy. The exceptions are CYP3A4-inducing drugs and a small number of others. The prescribing information for Zolpidem states whether the interaction is meaningful.
Do I need a backup contraceptive on Ambien? ▾
Backup contraception is needed only when there is a documented interaction between Ambien and the contraceptive method. For most users at 5mg, 10mg, 6.25mg CR, 12.5mg CR, no backup is required. The pharmacist confirms whether Zolpidem interacts with hormonal contraception.
More on Ambien
- With alcoholAmbien and alcohol — is it safe to drink?
- With foodShould Ambien be taken with food?
- Side effectsAmbien side effects: common, rare and warning signs
- Dosage guideAmbien dosage guide: how much to take and when
- OnsetHow fast does Ambien start working?
- DurationHow long does Ambien last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.