Acitretin is a second generation aromatic retinoid, and is the active metabolite of etretinate.Acitretin has a shorter terminal elimination half-life and higher bioavailability than etretinate.

• 阿维A为第二代维A酸,是阿维A酯的代谢活性酸,具有较高的生物利用度及较短的半衰期,已广泛治疗各种角化性皮肤病,而这些角化性疾病大多是遗传性疾病。