No data on systemic exposure. ASA is considered safe to use. sulfur is not metabolised.

Champo containing ASA 1g/100g and sulfur 5g/100g. Used in seborrhoea. No data on systemic absorbtion. ASA: James, Hift: use EPI-list: safe South African list: use French list: use Kalman, Bonkovsky: safe Merck Index: safe Eales: safe Thunell; clinical reports: safe (n=32)