 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  of side effects. Many people using this medication do not have serious side effects. This medication may raise your blood pressure. Check your blood pressure regularly and tell your doctor if the results are high. Tell your doctor right away if you have any serious side effects, including: unusual changes in vaginal bleeding (such as continuous spotting, sudden heavy bleeding, missed periods), symptoms of a high potassium blood level (such as muscle weakness, slow/irregular heartbeat). This medication may rarely cause serious (sometimes fatal) problems from blood clots (such as deep vein thrombosis, pulmonary embolism, stroke, heart attack). Talk to your doctor about the risks and benefits of this birth control pill. Get medical help right away if you experience: sudden shortness of breath, chest/jaw/left arm pain, unusual sweating, confusion, coughing up blood, sudden dizziness/fainting, pain/swelling/warmth in the groin/calf, tingling/weakness/numbness in the arms/legs, unusual headaches (including headaches with vision changes/lack of coordination, worsening of migraines, sudden/very severe headaches), trouble speaking, weakness on one side of the body, sudden vision changes (such as </s>