GNH USA

Europe — EMA

Metoxaleno S.A.L.F.

GNH USA supplies Metoxaleno S.A.L.F. (Methoxsalen), a psoralen antipsoriatic for PUVA therapy in psoriasis and vitiligo.

Methoxsalen

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What is Methoxsalen?

Methoxsalen, the active ingredient in Metoxaleno S.A.L.F., is a psoralen presented as an unspecified strength and dosage form for extracorporeal use. It is employed in photochemotherapy to treat psoriasis and vitiligo, typically in combination with UVA radiation under medical supervision by dermatology specialists.

GNH USA supplies Metoxaleno S.A.L.F. as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with a focus on quality assurance and regulatory compliance. Our distribution network ensures timely delivery across Europe, Asia and the Americas.

What is Methoxsalen used for?

Methoxsalen is a psoralen used in PUVA phototherapy for several dermatologic conditions.

- Psoriasis: reduces hyperproliferative skin plaques when combined with UVA exposure. - Vitiligo: promotes repigmentation of depigmented areas under UVA treatment. - Lichen planus: may improve inflammatory lesions when administered with UVA as part of PUVA protocol.

What are the side effects of Methoxsalen?

Methoxsalen may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects: - Nausea: mild gastrointestinal upset after oral administration. - Headache: transient cranial discomfort. - Erythema: mild skin redness at treated sites. - Hyperpigmentation: increased skin coloration in exposed areas. - Pruritus: itching of the skin. - Phototoxicity: heightened skin sensitivity to light.

Serious or Rare Side Effects: - Severe phototoxic burns: blistering and ulceration after UVA exposure. - Hepatotoxicity: abnormal liver enzymes indicating liver injury. - Aplastic anemia: rare bone‑marrow suppression. - Severe nausea and vomiting: persistent gastrointestinal distress. - Allergic reactions: rash, angioedema, or anaphylaxis.

What precautions apply to Methoxsalen?

When using Methoxsalen, several safety measures should be observed to minimize risks. - Liver function assessment: evaluate hepatic enzymes before initiating therapy. - Skin type evaluation: determine phototype to adjust UVA dose. - Sun exposure avoidance: limit natural sunlight during treatment. - Blood count monitoring: check complete blood count periodically. - Pregnancy contraindication: avoid use in pregnant patients due to unknown fetal risk. - Store at ambient temperature: keep in original container, protect from moisture and light.

What does Methoxsalen interact with?

Methoxsalen can interact with other medications, requiring careful management.

Major Interactions (Avoid): - Oral retinoids: combined use markedly increases skin toxicity. - Tetracycline antibiotics: may enhance phototoxic reactions. - Warfarin: Methoxsalen can potentiate anticoagulant effect, raising bleeding risk.

Moderate Interactions (Monitor Closely): - Oral contraceptives: may reduce efficacy of hormonal contraception. - Azole antifungals: can increase Methoxsalen plasma levels. - Diuretics (thiazides): may augment photosensitivity. - NSAIDs: monitor for increased gastrointestinal irritation.

Frequently asked questions

What conditions is Metoxaleno S.A.L.F. used for?+
Metoxaleno S.A.L.F. contains methoxsalen, which is used in PUVA phototherapy to treat moderate to severe plaque psoriasis, vitiligo, and certain inflammatory skin disorders such as lichen planus. The drug is applied in combination with controlled UVA exposure to achieve therapeutic effects.
How does methoxsalen work in the body?+
Methoxsalen intercalates into DNA and, when activated by UVA light, creates covalent bonds with pyrimidine bases. This cross‑linking blocks DNA replication and cell division, reducing excessive skin cell growth in psoriasis and stimulating melanocyte activity for repigmentation in vitiligo.
What is the usual dose of Metoxaleno S.A.L.F.?+
The dosage of Metoxaleno S.A.L.F. is determined individually by the prescribing clinician based on the patient’s condition, skin type, and treatment protocol. Dosing regimens are tailored during PUVA therapy and should follow the prescriber’s instructions.
Is Metoxaleno S.A.L.F. safe during pregnancy or breastfeeding?+
Methoxsalen is classified as contraindicated in pregnancy because its effects on the developing fetus are unknown. Women who are pregnant, planning to become pregnant, or breastfeeding should avoid the product and discuss alternative therapies with their healthcare provider.
How do I order Metoxaleno S.A.L.F. from GNH USA?+
To order, submit an enquiry on the product page at gnh-usa.com, specifying the required quantity. GNH USA works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.
How does Metoxaleno S.A.L.F. compare with other psoralen products?+
Methoxsalen is the most widely used psoralen for PUVA therapy, offering a well‑characterized safety profile and predictable photochemical activity. Compared with newer biologic agents, it requires UVA exposure but is less costly and can be effective for patients who do not respond to systemic biologics.
What are the recommended storage conditions for Metoxaleno S.A.L.F.?+
Store Metoxaleno S.A.L.F. at ambient temperature, preferably below 25 °C, in its original packaging. Protect the product from moisture, direct sunlight and excessive heat to maintain stability and potency.
How is Metoxaleno S.A.L.F. administered?+
Methoxsalen is administered extracorporeally, typically as an oral dose taken a few hours before a controlled UVA exposure session. The exact administration schedule is set by the treating dermatologist according to the PUVA protocol.
What are the most serious risks associated with Methoxsalen therapy?+
Serious risks include severe phototoxic burns, hepatotoxicity, and rare bone‑marrow suppression such as aplastic anemia. Patients should be monitored closely for signs of liver dysfunction, abnormal blood counts, and excessive skin reactions during treatment.
Who should not use Metoxaleno S.A.L.F.?+
Individuals with a history of photosensitivity disorders, active liver disease, uncontrolled hypertension, or those who are pregnant or breastfeeding should avoid methoxsalen. It is also contraindicated in patients taking other strong photosensitizers without medical supervision.
Information provided on this page is for educational use by procurement and clinical professionals. Always consult a licensed healthcare provider for medical advice and prescribing decisions. GNH USA supplies this product subject to applicable regulatory and licensing requirements.

Product details

Drug
Methoxsalen
Route
Extracorporeal Use
Manufacturer
S.A.L.F. Spa Laboratorio Farmacologico
Origin
EU

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