Veracal 40 mg is a sustained-release tablet containing 40 mg of verapamil hydrochloride, a calcium channel blocker. It is primarily used to manage essential hypertension, prevent angina (chest pain), and treat certain supraventricular arrhythmias. By inhibiting calcium ion influx into cardiac and smooth muscle cells, Veracal relaxes blood vessels, reduces heart rate, and decreases myocardial oxygen demand. This action helps lower blood pressure and alleviate symptoms of angina. Veracal is generally well-tolerated; however, potential side effects include constipation, dizziness, headache, and bradycardia. It should be used cautiously in patients with heart failure, AV block, or low blood pressure. The medication is typically taken with food, and dosing should be individualized based on the patient's response and condition.