Calan SR: An Effective Treatment for High Blood Pressure and Angina Pectoris Calan SR (verapamil hydrochloride sustained-release tablets) is a prescription medication used to treat high blood pressure (hypertension) and angina pectoris (chest pain). It is a calcium channel blocker that works by relaxing the blood vessels, making it easier for the heart to pump blood and oxygen throughout the body. Calan SR is suitable for adults of all ages, but certain precautions should be taken before using it. Uses Calan SR is primarily used to treat high blood pressure, a common condition among adults. It is often referred to as the "silent killer" because it can cause damage to internal organs without noticeable symptoms. Calan SR works to lower blood pressure by relaxing the blood vessels, which allows the blood to flow more easily and reduces the workload on the heart. Angina pectoris is another condition for which Calan SR can be used. It is characterized by chest pain or discomfort when the heart does not receive enough oxygen-rich blood. Calan SR helps to increase the blood supply to the heart by relaxing the blood vessels, resulting in a decrease in chest pain. Dosage It is essential to take Calan SR as prescribed by a doctor. The standard dosage for hypertension is 180mg/day, divided into three doses (60mg, three times daily). The maximum dosage should not exceed 480mg/day. For angina pectoris, the standard dosage is 120-240mg/day in divided doses (every 12 hours). The maximum dosage should not exceed 480mg/day. Demographic Calan SR is suitable for adults of all ages, from 18 years and above. However, certain precautions should be taken before using Calan SR. Pregnant women, nursing mothers, people with low blood pressure, liver or kidney disease, and heart disease should not use Calan SR without first consulting with a doctor. Side Effects As with any medication, Calan SR can cause side effects, although not everyone experiences them. Common side effects include constipation, nausea, dizziness, and headache. Other side effects can include coughing, runny nose, fatigue, and muscle weakness. If these side effects persist or worsen, it is essential to consult with a doctor. Less common side effects of Calan SR can include rapid heartbeat, chest pain, fainting, and swelling in the ankles or feet. These are serious side effects that require immediate medical attention. Interactions Calan SR can interact with other medications, including blood thinners, beta-blockers, and statins. Therefore, it is crucial to inform a doctor or pharmacist of any other medications being taken before starting Calan SR. Additionally, grapefruit or grapefruit juice should be avoided while taking Calan SR as it can increase the concentration of the drug in the bloodstream and cause harmful side effects. Generic Options Verapamil Hydrochloride is the generic version of Calan SR and is available under various brand names. It is less expensive than Calan SR, making it an affordable option for those who need long-term therapy for hypertension or angina pectoris. Conclusion Calan SR is a safe and effective medication used to treat hypertension and angina pectoris. It works by relaxing the blood vessels, allowing blood and oxygen to flow freely throughout the body. It is suitable for adults of all ages, but precautions should be taken before use. Consulting with a doctor or pharmacist is essential to ensure safe and effective use and to avoid any harmful side effects or drug interactions.