plasma concentrations of etretinate ( e ) , acitretin ( a ) and 13-cis-acitretin ( 13-cis a ) were measured using a reverse phase hplc assay in patients with psoriasis during 24h after the first dose ( 0.8 mg/kg ) and after 3 weeks ( group a ) , and in a second group with various skin diseases ( b ) under long-term treatment after 3 months .
C0050559
acitretin
C0033860
psoriasis