Yasmin Tablet 21'S Is An Oral Contraceptive That Contains A Combination Of Drospirenone (3Mg) And Ethinylestradiol (30Mcg) As Its Active Ingredients. Drospirenone Is A Progestin, While Ethinylestradiol Is An Estrogen. This Combination Works By Preventing Ovulation, Altering The Cervical Mucus To Inhibit Sperm Movement, And Thinning The Uterine Lining To Prevent Implantation. Yasmin Is A Convenient, Once-Daily Hormonal Contraceptive, And It Also Provides Additional Benefits, Including The Treatment Of Acne Vulgaris And The Management Of Premenstrual Dysphoric Disorder (Pmdd). Side Effects Common Side Effects Of Yasmin Tablet 21'S May Include: Nausea Or Vomiting Breast Tenderness Headache Or Migraine Weight Gain Mood Swings Or Irritability Rare But Serious Side Effects May Include: Blood Clots (Deep Vein Thrombosis Or Pulmonary Embolism) Heart Attack Or Stroke, Especially In Smokers Severe Liver Dysfunction High Blood Pressure If You Experience Any Of The Following Symptoms: Sudden Pain In The Chest, Difficulty Breathing, Sudden Severe Headache, Vision Changes, Or Swelling In The Legs, Seek Medical Attention Immediately. Precautions Before Taking Yasmin Tablet 21'S, Consider The Following Precautions: Do Not Use If You Have A History Of Blood Clots, Heart Disease, Stroke, Liver Disease, Or Are A Heavy Smoker. Avoid Use If You Are Hypersensitive To Any Of The Components Of Yasmin. Monitor Your Blood Pressure Regularly During Use, Especially For Women With Hypertension. Yasmin Does Not Protect Against Sexually Transmitted Infections (Stis). Use Additional Barrier Methods (E.G., Condoms) If Necessary. Certain Medications, Such As Antibiotics Or Anti-Seizure Drugs, May Reduce The Effectiveness Of Yasmin. Inform Your Doctor Of All Medications You Are Taking. Women With A Personal Or Family History Of Blood Clots, Cardiovascular Disease, Or Migraines Should Discuss Risks With Their Healthcare Provider Before Starting Yasmin.