Jeanine (Dienogest, Ethinylestradiol)

Jeanine, a combined oral contraceptive, is indicated for hormonal contraception.

• Prevention of pregnancy: provides reliable contraceptive protection for women of child‑bearing potential.
• Menstrual cycle regulation: helps achieve more predictable monthly bleeding patterns.
• Acne management: may improve hormonal acne associated with menstrual fluctuations.
• Endometriosis symptom control: reduces menstrual pain and lesion progression in some patients.

• Dienogest/Ethinylestradiol works by suppressing the mid‑cycle surge of luteinising hormone (LH) and follicle‑stimulating hormone (FSH), thereby inhibiting ovulation. The estrogen component stabilises the endometrial lining, while the progestin component thickens cervical mucus and alters the endometrium, creating an environment less conducive to fertilisation and implantation.

Common Side Effects

• Nausea: mild to moderate stomach upset.
• Breast tenderness: temporary swelling or discomfort.
• Headache: occasional tension‑type headaches.
• Weight gain: modest increase in body weight.
• Mood changes: fluctuations in mood or irritability.
• Spotting: irregular light bleeding between periods.

Serious or Rare Side Effects

• Deep vein thrombosis: blood clot formation in deep veins.
• Pulmonary embolism: clot migration to lung arteries.
• Stroke: cerebrovascular accident due to clot.
• Myocardial infarction: heart attack risk.
• Severe allergic reaction: rash, swelling, difficulty breathing.
• Liver dysfunction: jaundice or abnormal liver enzymes.

Before prescribing Jeanine, clinicians should assess individual risk factors and counsel patients on safe use.

• Thrombotic risk assessment: evaluate personal or family history of clotting disorders.
• Blood pressure monitoring: screen for hypertension before initiation.
• Smoking status: avoid use in women over 35 who smoke.
• Liver function evaluation: consider hepatic impairment before prescribing.
• Pregnancy avoidance: ensure patient is not pregnant and advise effective backup methods.
• Store at ambient temperature: keep in original packaging, protect from moisture and direct sunlight.

Jeanine may interact with several medicines that affect hormone metabolism or increase clot risk.

Major Interactions (Avoid)

• Enzyme‑inducing anticonvulsants (e.g., carbamazepine, phenytoin): reduce contraceptive efficacy.
• Rifampicin and other strong CYP3A4 inducers: markedly lower hormone levels.
• St. John’s wort: herbal inducer that may compromise contraceptive protection.

Moderate Interactions (Monitor Closely)

• Certain antibiotics (e.g., tetracycline, metronidazole): may slightly reduce effectiveness.
• Antifungal agents (e.g., ketoconazole, itraconazole): can increase hormone concentrations.
• Antiretroviral protease inhibitors: may alter plasma levels, requiring clinical monitoring.