Metvix

Methyl aminolevulinate, the active ingredient in Metvix, is a photosensitizer presented as a 16% w/w cream for topical use. It is employed in the field‑directed photodynamic treatment of actinic keratosis on sun‑exposed skin in adult patients. GNH USA supplies Metvix as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Metvix is a topical photosensitizer used in the management of actinic keratosis through photodynamic therapy. - Actinic keratosis (field‑directed): clears visible and subclinical dysplastic lesions across a treated skin area. - Precancerous skin lesions: reduces the number of lesions and lowers progression risk. - Sun‑damaged skin areas: provides comprehensive treatment of multiple lesions within a single illumination field.

Adverse reactions are primarily localized to the treated skin area.

Common Side Effects: - Erythema: redness of the skin after illumination. - Pain or burning sensation during and after light exposure. - Edema: swelling of the treated region. - Itching or pruritus. - Crusting or scaling of the skin.

Serious or Rare Side Effects: - Severe photosensitivity reactions extending beyond the treatment field. - Secondary infection of the treated skin. - Allergic contact dermatitis. - Persistent hyperpigmentation or hypopigmentation. - Scarring or ulceration of the treated area.

Before using Metvix, consider the following safety measures. - Avoid sunlight exposure: keep the treated area protected from bright light for at least 48 hours. - Use protective clothing: wear gloves and goggles during illumination to prevent accidental exposure. - Assess skin integrity: do not apply on broken, inflamed, or infected skin. - Pregnancy and lactation: safety is unknown; avoid use unless the potential benefit justifies the risk. - Store at below 25°C: keep in the original container, protect from moisture and light.

Metvix may interact with other agents that influence photosensitivity or skin healing.

Major Interactions (Avoid): - Systemic photosensitizers (e.g., porfimer sodium): increased risk of severe photosensitivity. - Tetracycline antibiotics: may enhance photosensitivity reactions.

Moderate Interactions (Monitor Closely): - Oral retinoids (e.g., isotretinoin): may increase skin irritation. - Topical steroids: could reduce the efficacy of photodynamic therapy. - Vitamin A supplements: monitor for heightened photosensitivity.