Captopril 25 mg tablets are an ACE inhibitor prescribed to treat high blood pressure, manage congestive heart failure, improve survival after a heart attack, and protect kidney function in patients with diabetic nephropathy. It works by relaxing blood vessels to reduce the heart's workload.Primary UsesHigh Blood Pressure (Hypertension): Lowers blood pressure to help prevent future strokes, heart attacks, and kidney damage.Heart Failure: Reduces stress on the heart and helps manage symptoms of chronic heart failure.Post-Heart Attack Support: Given after a heart attack to improve survival rates and prevent the heart muscle from weakening further.Diabetic Nephropathy: Slows down the worsening of kidney disease in people who have diabetes.Common Side EffectsDry, persistent coughDizziness or lightheadedness when standing upChanges in taste perceptionLow blood pressure (hypotension)High potassium levels (hyperkalemia)Important Safety TipsTake the tablet on an empty stomach, usually about 1 hour before meals.Stand up slowly from a sitting or lying position to manage dizziness.Do not stop taking this medicine suddenly without talking to your doctor, even if you feel well.Consult your doctor or check resources like Drugs.com if you are pregnant, planning a pregnancy, or breastfeeding, as ACE inhibitors can cause harm.