How to take Mercilon 28: Tablets must be taken in the order directed on the package every day at about the same time with some liquid as needed. One tablet is to be taken daily, starting with the large (active) tablets for 21 consecutive days followed by the small (placebo) tablets for 7 days. Each subsequent pack is started immediately following the last placebo tablet. During the placebo days a withdrawal bleed usually occurs. This usually starts on day 2-3 after the last active tablet and may not have finished before the next pack is started.
Each pack of Mercilon 28 consists of:
- 21 large (6 mm diameter), white, round biconvex tablets coded TR/4 on one side and ORGANON and a star on the other side, and containing desogestrel (a progestogen) 0.15 mg, ethinyloestradiol (an oestrogen) 0.02 mg; and
- 7 small (4.5 mm diameter), white, round, flat tablets with bevelled edges, coded KH/2 on one side and a square on the other side, and containing no active ingredients.