Methoxsalen tablets for the treatment of vitiligo according to the body weight of 0.5mg/kg, adults each time to take 25mg-30mg, 2-3 times a week; treatment of psoriasis, according to the body weight of 0.6mg/kg, adults each time to take 30mg-35mg, 2-3 times a week. Methoxsalen tablets are composed of methoxsalen, which is mainly used for the treatment of psoriasis (psoriasis) and vitiligo in clinical practice. People with vitiligo usually take 25mg-30mg, people with psoriasis usually take 30mg-35mg, and can take it 2-3 times a week as prescribed by the doctor. Children’s medication must be calculated by a specialized doctor according to their weight. Pregnant women, lactating women, children under 12 years of age, the elderly and infirm, and those who are allergic to the drug composition of Methoxsalen Tablets are prohibited from taking it. Methoxsalen tablets should be used with caution in allergic individuals. Adverse reactions such as nausea and headache may occur after use of the drug, the degree of which is mild and generally does not affect normal medication. People suffering from the above conditions need to take methoxsalen tablets under the guidance of a professional doctor, oral medication as prescribed by the doctor can be used, and with sun exposure or black light treatment.