Novastep (Ethinylestradiol, Levonorgestrel)

Novastep, a combined estrogen‑progestogen oral contraceptive, is used for hormonal contraception and related menstrual conditions.

• Prevention of pregnancy: provides reliable birth control for women of childbearing age.
• Regulation of menstrual cycles: helps achieve predictable bleeding patterns and reduces dysmenorrhea.
• Treatment of acne: can improve acne by decreasing androgenic activity in the skin.

• Ethinylestradiol and levonorgestrel act together to suppress the hypothalamic‑pituitary‑ovarian axis, preventing the mid‑cycle surge of luteinising hormone and thereby inhibiting ovulation. The estrogen component stabilises the endometrium, while the progestogen thickens cervical mucus and induces endometrial changes that reduce the likelihood of implantation.

Novastep 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.
• Mood changes: irritability or emotional fluctuations.
• Weight gain: modest increase in body weight.

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 or hemorrhage.
• Myocardial infarction: heart attack from reduced coronary flow.
• Hepatic adenoma: benign liver tumor.
• Severe allergic reaction: anaphylaxis with rash, swelling, or breathing difficulty.

Before prescribing Novastep, clinicians should consider several safety factors.

• Assess thrombotic risk: evaluate personal or family history of clotting disorders.
• Screen for hypertension: ensure blood pressure is controlled before use.
• Avoid smoking: especially in women over 35 years of age.
• Monitor liver function: caution in patients with hepatic disease.
• Contraindicated in pregnancy: do not use in pregnant women.
• Store at ambient temperature: keep below 25°C in the original pack, protect from moisture.

Novastep can interact with other medicines, altering its effectiveness or safety.

Major Interactions (Avoid)

• Enzyme‑inducing anticonvulsants (e.g., carbamazepine): reduce contraceptive efficacy.
• Rifampin: markedly decreases plasma hormone levels.
• St. John’s wort: may lead to contraceptive failure.

Moderate Interactions (Monitor Closely)

• Certain antibiotics (e.g., tetracycline): may slightly lower effectiveness.
• Antifungal agents (e.g., ketoconazole): can increase hormone concentrations.
• Selective serotonin reuptake inhibitors: may heighten risk of mood changes.