Aygestin drug interactions: a practical overview
Drug interactions are the single biggest cause of preventable medication problems. Aygestin (Norethindrone Acetate) interacts to varying degrees with several classes of medication and with a smaller list of foods. This page summarises the practically important ones at 5mg, framed for a real-world prescription review rather than an exhaustive PDF list.
High-priority interactions for Aygestin
For Norethindrone, the most clinically relevant interactions are typically with strong CYP3A4 inhibitors and inducers, with cardiovascular medications (notably nitrates for several Women's Sexual Health agents), with central nervous system depressants, and with medications affecting blood pressure or heart rate. Norethindrone binds to progesterone receptors and exerts progestational effects: thickening cervical mucus, suppressing the LH surge, thinning the endometrium and reducing endometrial implant activity…
Working with the pharmacist
A pharmacist review of all current medications is the practical safeguard against unintended interactions with Aygestin. According to the prescribing information for Norethindrone, the full medication list — prescription, OTC, supplements and recreational substances — should be reviewed before starting and at every dose change at 5mg.
Frequently asked questions
What's the most important Aygestin interaction to know? ▾
For most Women's Sexual Health medications, the highest-priority interaction is with nitrate medications used for chest pain — this combination is often a hard contraindication. After that, strong CYP3A4 inhibitors (some antifungals, macrolides) are the next concern at routine 5mg doses.
Do I need to tell the pharmacist about supplements? ▾
Yes. Supplements and herbal products can interact with Aygestin in ways that prescription drug-drug interaction databases miss. The pharmacist needs the complete picture — including supplements like St John's Wort, grapefruit-containing products and high-dose vitamins — to flag risks at 5mg.
More on Aygestin
- With alcoholAygestin and alcohol — is it safe to drink?
- With foodShould Aygestin be taken with food?
- Side effectsAygestin side effects: common, rare and warning signs
- Dosage guideAygestin dosage guide: how much to take and when
- OnsetHow fast does Aygestin start working?
- DurationHow long does Aygestin last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.