Progestogen with anti-mineralocorticoid and anti-androgen activity
Drospirenone and grapefruit: a real interaction?
Grapefruit is famous as the juice that interacts with medications, and the warning is real for a number of drugs. Whether it matters specifically for Drospirenone (Drospirenone) at 3mg / 0.03mg, 3mg/0.02mg depends on whether the active ingredient Drospirenone is metabolised by CYP3A4 in the gut wall and how much that pathway contributes to first-pass metabolism.
The CYP3A4 mechanism
Grapefruit (and its juice) inhibits CYP3A4 enzymes in the gut wall, increasing the absorbed dose of medications metabolised by that enzyme. For drugs in the Progestogen with anti-mineralocorticoid and anti-androgen activity class that go through CYP3A4 first-pass metabolism, regular grapefruit consumption can raise plasma levels of Drospirenone by a clinically meaningful margin and amplify side effects.
What to do with Drospirenone
According to the prescribing information for Drospirenone, if grapefruit is flagged as an interaction, the safest practice is to avoid grapefruit entirely or to discuss timing with the prescriber. Drospirenone activates progesterone receptors to suppress ovulation and produce the contraceptive effect when combined with an estrogen. A small occasional serving may be tolerable; daily large servings around the time of Drospirenone dosing are not recommended at 3mg / 0.03mg, 3mg/0.02mg.
Frequently asked questions
Can I eat grapefruit while on Drospirenone? ▾
For some Progestogen with anti-mineralocorticoid and anti-androgen activity medications, grapefruit is best avoided or limited because of CYP3A4 inhibition. Whether Drospirenone specifically is affected depends on Drospirenone; the prescribing information lists this. When in doubt, ask the pharmacist or check the patient leaflet.
How much grapefruit is too much with Drospirenone? ▾
For drugs where the interaction matters, even modest daily grapefruit intake (one whole grapefruit or one large glass of juice) can shift drug levels noticeably. For Drospirenone at 3mg / 0.03mg, 3mg/0.02mg, individual tolerance varies; the cautious choice is to avoid grapefruit if any interaction is mentioned.
Products containing Drospirenone
More on Drospirenone
- With alcoholDrospirenone and alcohol — is it safe to drink?
- With foodShould Drospirenone be taken with food?
- Side effectsDrospirenone side effects: common, rare and warning signs
- Dosage guideDrospirenone dosage guide: how much to take and when
- OnsetHow fast does Drospirenone start working?
- DurationHow long does Drospirenone last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.