Mirelle (Ethinylestradiol, Gestodene | Lactose Monohydrate)

Mirelle is a combined oral contraceptive that acts on the hormonal regulation of the menstrual cycle to prevent pregnancy.

• Prevention of pregnancy: provides reliable contraception for women of child‑bearing potential.
• Cycle regulation: helps establish regular menstrual bleeding patterns.
• Acne improvement: may reduce androgen‑related acne in some users.

• Ethinylestradiol and gestodene work together to suppress the mid‑cycle surge of luteinising hormone (LH) and follicle‑stimulating hormone (FSH), thereby inhibiting ovulation. The estrogen component stabilises the endometrium, while the progestogen thickens cervical mucus and alters endometrial development, creating an environment unfavorable for fertilisation and implantation.

Mirelle may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Nausea: mild to moderate stomach upset.
• Headache: tension‑type or migraine‑like pain.
• Breast tenderness: swelling or discomfort.
• Spotting or breakthrough bleeding: irregular light bleeding.
• Weight gain: modest fluid retention.
• Mood changes: irritability or emotional lability.

Serious or Rare Side Effects

• Venous thromboembolism: deep‑vein thrombosis or pulmonary embolism.
• Stroke: cerebrovascular accident, especially in high‑risk women.
• Myocardial infarction: heart attack in susceptible individuals.
• Severe allergic reaction: rash, swelling, or anaphylaxis.
• Hepatic adenoma: benign liver tumor.
• Hypertension: new‑onset or worsening high blood pressure.

Before prescribing Mirelle, clinicians should assess individual risk factors and contraindications.

• Pregnancy contraindication: must not be used during pregnancy.
• Smoking restriction: avoid in women over 35 who smoke.
• Thromboembolic history: contraindicated in patients with prior clotting events.
• Liver disease: use with caution in hepatic impairment.
• Hypertension: monitor blood pressure regularly.
• Store at below 25°C: keep in the original pack, protect from moisture.

Mirelle can interact with several medicines, altering its effectiveness or safety.

Major Interactions (Avoid)

• Enzyme‑inducing anticonvulsants (e.g., carbamazepine, phenytoin): reduce contraceptive efficacy.
• Rifampicin: decreases plasma levels of both hormones.
• St. John's Wort: may lead to contraceptive failure.

Moderate Interactions (Monitor Closely)

• Antifungal agents (e.g., ketoconazole): may increase hormone concentrations.
• Certain antidepressants (e.g., SSRIs): may affect bleeding patterns.
• Diuretics and antihypertensives: monitor blood pressure and electrolyte balance.