Medicine Name: Espin-AT Tablet. Composition: S-Amlodipine (2.5mg) + Atenolol (50mg). Side Effects: Headache Nausea Tiredness Sleepiness Dizziness Palpitations Slow heart rate Abnormal dreams Swelling of legs Cold extremities Flushing sense of warmth in the face ears neck and trunk Constipation Ankle swelling Edema swelling.