Oxsoralen Lotion

Capsules: For vitiligo, the usual dose for adults and children over 12 years of age is 20 mg daily, taken 3 to 4 hours (for the regular capsules) or 1 to 2 hours (for the soft gelatin capsules) before exposure to sunlight or UV light treatment. For psoriasis or atopic dermatitis, the dose is based on body weight and taken 1.5 to 2 hours before UV light therapy. Methoxsalen should be taken after meals or with milk.

Lotion: For vitiligo, apply once weekly to a few depigmented areas (areas that are missing skin colour) and expose to UV light for a maximum of one minute. Alternate the sites where you apply the medication. If you are using both the capsules and the lotion, protect the areas where the lotion has been applied from daily exposure to UV light.

Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are using the medication without consulting your doctor.

It is important to use Oxsoralen Lotion (Methoxsalen-topical) exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not use a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.