In the surveys of the MONICA project Augsburg, conducted in 1984/85 (S1) and 1989/90 (S2), data on oral contraceptive (OC) use were gathered in two independent representative population-based samples of women aged 25-44 years (medication history over the previous seven days). OCs were categorized according to their oestrogen content (< 50mg, ≥50mg) and according to their progestogen component. The prevalence of OC use was unchanged between the two points in time (23.4% in S1 and 23.7% in S2). OCs with low oestrogen content were used in 49.0% of the OC users in S1 and in 76.6% in S2. The use of the progestogen component changed also: norethindrone (acetate), levonorgestrel, and lynestrenol were used less, desogestrel more often in S2. Gestoden and norgestimate were used by 15% of the OC users in S2. In conclusion, we can say that there was no change in the prevalence of OC use in the study population; however, a change in hormone content towards preparations with lower hormone content was observed.