Intramuscular injection. Once 2ml. 1-2 times a day. 10 days for a course of treatment In the treatment of vitiligo, about 1 hour after the injection, the affected area with the irradiation of artificial ultraviolet light 1-10 minutes or sun exposure for 5-20 minutes; localized such as redness, swelling, blisters, the use of medication should be suspended; dizziness, blood pressure rise after the use of medication is occasionally seen; high blood pressure should be used with caution; pregnant women are contraindicated

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