Marvelon 21 Tablets is an oral contraceptive medication manufactured by Organon. Each pack contains 21 tablets with a combination of hormones (desogestrel and ethinylestradiol) designed for daily administration over a 21-day period. This prescription medication requires consultation with and supervision by a healthcare provider. The tablets come in a light blue blister pack with clear markings to help track daily doses. After completing the 21-day course, users typically take a 7-day break before starting the next pack. The medication should be stored at room temperature away from moisture and direct sunlight.