Duac , for acne , Olux E for dermatitis and Soriatane for the treatment of severe psoriasis . GSK is the world 's second-largest drugmaker . U.S.-based Stiefel is world 's largest independent dermatology company . GSK will acquire total share capital of Stiefel for $ 2.9 billion . Comment:
GSK is the world 's second-largest drugmaker . U.S.-based Stiefel is world 's largest independent dermatology company . GSK will acquire total share capital of Stiefel for $ 2.9 billion . Comment: