Drug Uses YASMIN is very useful in treating preventing pregnancy, premenstrual dysphoric disorder (PMDD) or certain types of acne in women who are using Yasmin for birth control and it works by preventing ovulation, thickening the mucus in the cervix, and changing the lining of the uterus. Usage Following the dosage instructions of your doctor is the best way to use any medication. If you are unsure or do not remember the instructions then you may read the medicine label for more detailed information. Do not use any other options for birth controlling. Drug Class and Mechanism YASMIN falls under progesterone and estrogen combination birth control pill and it works by preventing ovulation, thickening the mucus in the cervix, and changing the lining of the uterus. Missed Dose It must only be used when required. So, there are no chances of a missed dose since it is not taken according to a regular dosage schedule. Storage Store YASMIN at room temperature between 68 and 77 degrees F(20 and 25 degrees C). Always keep it in a cool dark place that is not directly exposed to sources of heat or moisture and sunlight. Protect it from kids and pets.