Diane 35 tablets are used to treat women with severe signs of androgenisation (overproduction of androgen), that can produce conditions like hirsutism (unwanted hair) and androgenic alopecia (hair loss) both caused by excess androgen production. These conditions are often accompanied by acne, inflammation and seborrhoea (greasy skin from too much sebum). Diane 35 tablets reduce the symptoms of androgen-dependent conditions where oral antibiotic or local treatment alone has not been successful. Diane 35 tablets can also be used for oral contraception at the same time as they are being used to treat androgen-dependent conditions, however, they should not be used for contraception alone. Diane 35 tablets can be used for the treatment of polycystic ovary syndrome, which is also caused by excess androgen and is usually accompanied by acne and hirsutism.