Pill side effects, continuation found similar whether self-prescribed or prescribed by doctor.

In developing countries, especially Latin America, women obtain oral contraceptives without a physician's prescription. While these women experience more side effects, they have fewer accidental pregnancies than women who obtain the pills through a physician/prescription. A probability sample of 6692 Colombian women in Bogota were interviewed in 1974. Almost 1 in 20 of all women, and almost 1 in 13 of those married or living in a union, said they began using the pill on their own as their first method of contraception. The characteristics of the women without prescriptions were similar to those with, but self-prescribers were slightly older, had more children, and were less educated. 7 in 10 women of both groups continued pill use for 1 year; about 6 in 10 still used the pill after 2 years. Both groups gave side effects as their reason for discontinuation. The most frequently cited side effect was headache. None of the women reported the more serious complications, thrombophlebitis and thromboembolism. Women who did not begin with medical advice were less likely to seek it when they had side effects attributed to the pill. Half as many self-prescribers (24%), as users with a prescription (46%), reported visiting a private physician about side effects. 11% self-prescribers, compared with 25%, sought other professional help.