Medicine Name: Arbitel-Trio 50 Tablet ER. Composition: Cilnidipine (10mg) + Metoprolol Succinate (50mg) + Telmisartan (40mg). Side Effects: Nausea Taste change Constipation Diarrhea Headache Dizziness Weakness Ankle swelling Flushing sense of warmth in the face ears neck and trunk Edema swelling Increased potassium level in blood Slow heart rate Numbness of extremity Cold extremities Decreased blood pressure.