Cerazette Tab 28S is a prescription oral contraceptive medication that comes in a pack of 28 tablets. It contains desogestrel, a progestin-only birth control pill that helps prevent pregnancy. This medication should only be taken under the supervision and prescription of a qualified healthcare provider. The typical dosage is one tablet daily at the same time each day. Please consult your doctor or pharmacist for complete usage instructions, potential side effects, and drug interactions.