Olvisol-SR-30 Tablet is suggested for patients of angina. This medicine is effective in maintaining relaxed condition of heart by reducing its load. It helps to widen blood vessels for providing a smooth passage of flowing of blood to the heart. Dosage of this medicine depends on doctors prescription. It has several side effects that include dizziness, headache and changes in heart rate. Standard of this medication is determined as per its composition, long lastingness of result and mode of action.