Isotretinoin (13- cis- retinsyre), det aktive indholdsstof i Roaccutan, er et retinoid og et vitamin A - derivat.
OVERALL SUMMARY OF THE SCIENTIFIC EVALUATION OF ROACCUTANE AND ASSOCIATED NAMES (See Annex I) Isotretinoin (13-cis-retinoic acid), the active ingredient of Roaccutane, is a retinoid compound and a derivative of vitamin A.