Levidon

Levonorgestrel, the active ingredient in Levidon, is a progestogen presented as an unknown/unknown for oral use. It is used to prevent pregnancy when taken after unprotected sexual intercourse.

GNH USA supplies Levidon as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Levonorgestrel is a synthetic progestogen used in the emergency contraception pathway.

- Emergency contraception: prevents pregnancy after unprotected intercourse when taken within the approved time window. - Prevention of pregnancy: provides post‑coital contraception for women of reproductive age. - Ovulation inhibition: suppresses the luteinising hormone surge to block ovulation when administered before ovulation occurs.

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

Common Side Effects: - Nausea: mild to moderate stomach upset. - Abdominal pain: cramping or discomfort in the lower abdomen. - Fatigue: feeling unusually tired or weak. - Headache: mild to moderate head pain. - Dizziness: sensation of light‑headedness. - Menstrual changes: spotting, early or delayed periods.

Serious or Rare Side Effects: - Severe allergic reaction: rash, swelling, or difficulty breathing. - Chest pain: may indicate cardiovascular involvement. - Severe abdominal pain: persistent or worsening pain. - Liver dysfunction: jaundice or abnormal liver enzymes. - Thromboembolic events: signs of blood clots such as leg swelling or sudden shortness of breath.

Levidon should be used with attention to timing, health status, and possible interactions.

- Timing of administration: take as soon as possible after unprotected intercourse, ideally within 72 hours. - Pregnancy status: do not use if you are already pregnant; it is contraindicated in confirmed pregnancy. - Breastfeeding: consult a healthcare professional before use while nursing. - Drug interactions: review concomitant medications that may reduce effectiveness. - Medical conditions: assess for liver disease, hormonal disorders, or clotting disorders before use. - Store at ambient temperature: keep below 25 °C, retain in original packaging, protect from moisture and direct sunlight.

Levonorgestrel can interact with several medicines that affect its efficacy.

Major Interactions (Avoid): - Rifampicin: induces metabolism and may markedly reduce contraceptive effectiveness. - Anticonvulsants (e.g., phenytoin, carbamazepine): increase hepatic clearance, lowering drug levels.

Moderate Interactions (Monitor Closely): - St. John’s Wort: may modestly decrease effectiveness; monitor timing of intercourse. - Phenobarbital: enzyme inducer that can lower drug concentrations. - Certain antiretrovirals: may alter hormonal metabolism; clinical monitoring recommended.