Harmonet (Ethinylestradiol, Gestodene)

The tablet is taken once daily at the same time each day, following the prescribed cycle of active and placebo tablets. Missing a dose or taking it at varying times can reduce effectiveness.

Smoking, especially more than 15 cigarettes per day, increases the risk of cardiovascular events with combined oral contraceptives, so Harmonet is generally not recommended for heavy smokers.

Common side effects include mild nausea, breast tenderness, and spotting or breakthrough bleeding during the first few cycles.

If pregnancy is confirmed, Harmonet should be discontinued immediately, and the woman should consult her healthcare provider for further guidance.

Yes. Contraindications include a history of thromboembolic disease, certain cardiovascular conditions, uncontrolled hypertension, estrogen‑dependent tumors, severe liver disease, and known pregnancy.

Antibiotics such as rifampin and griseofulvin can increase the metabolism of hormonal components and may lower the contraceptive efficacy of Harmonet.

Many users experience more regular, predictable bleeding, while some may notice lighter periods, spotting, or, less commonly, missed periods during the first few cycles.

Combined oral contraceptives are generally not recommended during the first six weeks postpartum for breastfeeding women because of potential effects on milk production and infant exposure.

If a dose is missed, take it as soon as remembered and continue with the next dose at the usual time. If two or more consecutive doses are missed, use a backup method of contraception for seven days and consult a healthcare professional.

Harmonet may be prescribed off‑label for moderate acne that is linked to androgen excess, as the estrogen component can help reduce sebum production.

St. John’s wort can induce liver enzymes that lower hormone levels, potentially decreasing the effectiveness of Harmonet; use with caution and discuss alternatives with a clinician.