Methoxsalen Macopharma

Methoxsalen, the active ingredient in Methoxsalen Macopharma, is a psoralen presented as a pharmaceutical preparation for extracorporeal use. It is employed in photochemotherapy to treat certain skin disorders by sensitising the skin to UVA light, thereby reducing abnormal cell growth.

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

Methoxsalen is a psoralen used in the management of skin disorders that respond to phototherapy. - Psoriasis: helps reduce plaque formation and scaling when combined with UVA exposure. - Vitiligo: promotes repigmentation of depigmented patches through targeted photochemotherapy. - Cutaneous T‑cell lymphoma: assists in controlling skin lesions by inhibiting malignant T‑cell proliferation.

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

Common Side Effects: - Nausea: mild to moderate gastrointestinal upset. - Headache: transient cranial discomfort. - Erythema: redness of skin at treated sites. - Pruritus: itching following UVA exposure. - Phototoxic reaction: exaggerated skin response to light.

Serious or Rare Side Effects: - Severe phototoxicity: blistering and ulceration of skin. - Hepatotoxicity: elevated liver enzymes or liver injury. - Hematologic abnormalities: rare cases of aplastic anemia. - Cutaneous malignancy: potential increased risk with prolonged use. - Severe allergic reaction: anaphylaxis or angioedema.

When using Methoxsalen, several safety considerations should be observed. - Dose adjustment: tailor treatment based on individual response and skin type. - UV exposure control: limit UVA exposure to prescribed duration and intensity. - Eye protection: wear protective goggles to prevent ocular phototoxicity. - Pregnancy and lactation: avoid use unless benefits outweigh potential risks. - Concomitant photosensitisers: avoid simultaneous use of other photosensitising agents. - Store at ambient temperature: keep below 25°C in the original container, protect from moisture and direct sunlight.

Methoxsalen can interact with other medications and substances that affect photosensitivity or drug metabolism.

Major Interactions (Avoid): - Tetracycline antibiotics: may increase phototoxic skin reactions. - Phenothiazines: can potentiate photosensitivity. - Thiazide diuretics: heightened risk of cutaneous photosensitivity.

Moderate Interactions (Monitor Closely): - Oral retinoids (e.g., isotretinoin): may exacerbate skin irritation. - Antifungal agents (e.g., ketoconazole): possible alteration of methoxsalen metabolism. - Hormonal contraceptives: monitor for reduced efficacy due to enzyme induction.