The following drug is effective in treatment of ptyriasis versicolor –

Treatment of P. versicolor Systemic → Ketoconazole, Fluconazole, Itraconazole. Topical → Azoles (clotrimazole, econazole, micronazole, ketoconazole), selenium sulfide, sodium thiosulphate, whitfield's ointment (3% salicylic acid + 6% benzoic acid).