Prazonol 2.5mg XL Tablet is a medication used to treat high blood pressure, heart failure, and prostate gland enlargement. It can be taken alone or in combination with other medications and can be taken with or without food. The dose depends on the patient's condition. Common side effects include dizziness, headache, nausea, and unusual heartbeat. Pregnant or breastfeeding women should consult their doctor before using this medication. Patients with heart failure, liver, kidney, or cataract surgery should also be informed about regular blood pressure checks.