Captopril — Uses, Dosage, Side Effects & Safety
Drug class: Angiotensin-Converting Enzyme (ACE) Inhibitor
Overview
Captopril is a prescription medication used to treat high blood pressure (hypertension), heart failure, and certain kidney problems caused by diabetes (diabetic nephropathy). It may also be used after a heart attack to improve survival and reduce the risk of further heart complications. Captopril works by relaxing blood vessels, making it easier for your heart to pump blood. It does this by blocking the action of a substance in your body called angiotensin-converting enzyme (ACE), which normally causes blood vessels to narrow. Key points for patients: Take captopril exactly as prescribed, usually on an empty stomach. Regular monitoring of blood pressure and kidney function is important. Do not stop taking captopril without consulting your healthcare provider.
Therapeutic uses
- Hypertension
- Heart Failure
Common side effects
- Cough
- Dizziness
- Fatigue
- Headache
- Angioedema
- Hyperkalemia
- Hypotension
Frequently Asked Questions about Captopril
What conditions does captopril treat?
Captopril is used to treat high blood pressure, heart failure, diabetic kidney disease, and to improve survival after a heart attack.
How long does it take for captopril to work?
Captopril starts to lower blood pressure within 15-60 minutes of taking a dose, but it may take several weeks to see the full benefits.
Can I take captopril if I am pregnant?
No. Captopril should not be used during pregnancy as it can harm the unborn baby. Inform your doctor immediately if you become pregnant while taking this medication.
What should I do if I develop a cough while taking captopril?
A persistent dry cough is a known side effect. If it becomes bothersome, consult your healthcare provider. They may recommend an alternative medication.
Is it safe to take captopril with other blood pressure medicines?
Captopril can be combined with other antihypertensive agents, but your doctor will monitor you closely for low blood pressure or kidney issues.
What foods or supplements should I avoid while taking captopril?
Avoid potassium-rich foods, salt substitutes containing potassium, and potassium supplements unless directed by your doctor.
How is captopril different from other ACE inhibitors?
Captopril has a shorter duration of action and is usually taken more frequently than other ACE inhibitors. It is also the first ACE inhibitor developed.
Related Captopril information
- Enalapril
- Quinapril
- Ramipril
- Quinapril hydrochloride
- Lisinopril
- Perindopril
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Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.