Medicine Name: Olmetrack CT 12.5 Tablet. Composition: Olmesartan Medoxomil (20mg) + Chlorthalidone (12.5mg). Side Effects: Nausea Taste change Diarrhea Upset stomach Weakness Headache Dizziness Increased blood uric acid Increased blood lipid level Electrolyte imbalance Glucose intolerance Decreased blood pressure.