Nacrez (Desogestrel)

Desogestrel, the active ingredient in Nacrez, is a third‑generation progestin presented as an oral tablet for systemic use. It is employed as a hormonal contraceptive to prevent pregnancy in women of reproductive age.

GNH USA supplies Nacrez as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, providing EU‑origin products that meet stringent quality standards through robust supply chain management.

Desogestrel, a third‑generation progestin, is used within the hormonal contraceptive pathway to prevent pregnancy.

- Prevention of pregnancy: provides reliable contraceptive protection when taken as directed.

Desogestrel may cause a range of adverse reactions, from mild to serious.

Common Side Effects: - Nausea: mild stomach upset that often resolves with continued use. - Headache: transient tension‑type headaches. - Breast tenderness: mild discomfort or swelling of the breasts. - Irregular bleeding: spotting or changes in menstrual flow. - Weight gain: modest increase in body weight. - Mood changes: occasional irritability or mood swings.

Serious or Rare Side Effects: - Deep vein thrombosis: blood clot formation in deep veins. - Pulmonary embolism: clot migration to the lungs, a medical emergency. - Severe allergic reaction (anaphylaxis): rash, swelling, difficulty breathing. - Hepatic dysfunction: abnormal liver enzyme elevations. - Vision disturbances: rare cases of visual impairment. - Severe hypertension: sudden increase in blood pressure.

Before prescribing Desogestrel, clinicians should evaluate patient history and risk factors. - Pregnancy: not indicated for use during pregnancy; discontinue if pregnancy occurs. - Breastfeeding: assess risk versus benefit, as drug may pass into milk. - Smoking: avoid in women over 35 who smoke due to increased thrombotic risk. - History of thromboembolic disorders: contraindicated in patients with prior clotting events. - Drug interactions: review concomitant medications that may affect efficacy. - Store at ambient temperature: keep below 25°C, retain in original packaging, protect from moisture.

Desogestrel can interact with several drug classes, requiring careful management.

Major Interactions (Avoid): - Strong CYP3A4 inducers (e.g., rifampicin, carbamazepine, phenytoin): may markedly reduce contraceptive effectiveness. - Antifungal azoles (e.g., ketoconazole, itraconazole): can increase plasma concentrations, raising risk of side effects. - Protease inhibitors (e.g., ritonavir): may alter hormone levels and affect efficacy.

Moderate Interactions (Monitor Closely): - Certain antibiotics (e.g., tetracycline, metronidazole): may slightly diminish contraceptive reliability. - St. John’s wort (hypericum perforatum): herbal inducer that can lower hormone levels. - Anticonvulsants with moderate enzyme induction (e.g., valproic acid): require monitoring of contraceptive effect.