The availability of desogestrel with two doses of estrogen, makes a more elastic use in a number of situations in different users. In the author's experience, some preferences are mentioned. Use 20 mcg: a) in adolescents without acne; b) in thin users, less than 60 Kg. weight; c) in those with a large bosom and heavy cyclic bleedings; d) in obese patients, who have reached their ideal weight; e) in those women over 35 years or close to menopause and in those soon after menopause, if they are asymptomatic. Use 30 mcg: a) in adolescents with acne; b) in patients with a small or flat bosom and with scanty cyclic bleedings; c) in those heavier than 60 Kg. d) in obese patients on reducing treatment until they reach their ideal weight.