Methoxsalene Macopharma

Methoxsalen, the active ingredient in Methoxsalene Macopharma, is a psoralen presented as a pharmaceutical preparation for extracorporeal use. It is employed in PUVA therapy to treat chronic skin conditions such as psoriasis and vitiligo in adult patients.

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

Methoxsalen is used as a photosensitizing agent in PUVA therapy for several dermatologic conditions.

Psoriasis: improves plaque clearance and reduces scaling when combined with UVA exposure. Vitiligo: promotes repigmentation of depigmented patches during PUVA treatment. Cutaneous T‑cell lymphoma: used as part of PUVA regimens to control skin lesions.

Methoxsalen may cause a range of adverse reactions, most of which are related to its photosensitizing properties.

Common Side Effects: - Nausea: mild to moderate gastrointestinal upset. - Headache: transient cranial discomfort. - Erythema: mild skin redness after UVA exposure. - Hyperpigmentation: localized darkening of treated skin. - Pruritus: itching in exposed areas. - Photosensitivity: heightened skin reaction to light.

Serious or Rare Side Effects: - Severe phototoxic burns: extensive skin damage after UVA. - Blistering: formation of vesicles on irradiated skin. - Erythema multiforme: target‑like skin lesions. - Stevens‑Johnson syndrome: severe mucocutaneous reaction. - Bone marrow suppression: decreased blood cell counts. - Hepatic toxicity: abnormal liver function tests.

Methoxsalen requires careful patient assessment and monitoring to minimize risks.

Assess skin type: evaluate susceptibility to phototoxic reactions. Avoid sun exposure: limit UVA exposure for 24 hours post‑administration. Monitor blood counts: perform periodic hematologic testing. Check liver function: obtain baseline and follow‑up liver enzymes. Pregnancy: contraindicated unless benefits outweigh potential risks. Store at ambient temperature: keep in original container, protect from moisture and light.

Methoxsalen can interact with other medications, altering its safety profile.

Major Interactions (Avoid): - Other photosensitizing drugs: increase risk of severe skin reactions. - Systemic retinoids: amplify phototoxicity. - Azathioprine: may enhance bone marrow suppression. - Thiazide diuretics: potentiate photosensitivity.

Moderate Interactions (Monitor Closely): - Oral contraceptives: possible reduced efficacy. - Antifungal azoles: may affect metabolism. - SSRIs: monitor for additive side effects.