With Metformin Home>Pharmacy>Drugs_and_Medications>R>Rosiglitazone>With Metformin     Web Pages Avandamet Full prescribing information from RxList. Avandamet - GlaxoSmithKline Official product site with information intended for Patients and Care Givers. Rosglitazone / Metformin - FamilyDoctor.org Information for patients in English or Spanish.