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Lisinopril vs Amlodipine

Lisinopril vs Amlodipine

Drug Class

Angiotensin-Converting Enzyme (ACE) Inhibitor
Calcium Channel Blocker (CCB)

Mechanism of Action

Blocks ACE enzyme, reducing angiotensin II production, which relaxes blood vessels and lowers blood pressure.
Inhibits calcium influx into vascular smooth muscle, causing relaxation of blood vessels and lowering blood pressure.

Uses

- High blood pressure (hypertension) - Heart failure - Reducing risk of stroke or heart attack
- High blood pressure (hypertension) - Angina (chest pain) - Coronary artery disease

Dosage Forms

Tablets: 2.5 mg, 5 mg, 10 mg, 20 mg
Tablets: 2.5 mg, 5 mg, 10 mg

Common Side Effects

- Cough - Dizziness - Headache - Fatigue
- Swelling in legs or ankles (edema) - Dizziness - Flushing - Fatigue

Serious Side Effects

- Angioedema (swelling of face, lips, throat) - High potassium levels (hyperkalemia)
- Severe low blood pressure - Worsening of chest pain or heart attack (rare)

Special Precautions

- Avoid in pregnancy - Monitor potassium levels - Use caution in kidney disease
- Use caution in liver disease - May cause significant swelling in some individuals

Drug Interactions

- NSAIDs (reduce effectiveness) - Potassium supplements (increase potassium levels)
- Other blood pressure medications (enhance effects) - Grapefruit juice (may increase levels)

Pregnancy Category

Category D (not safe for use during pregnancy)
Category C (use only if clearly needed)

Effect on Heart Rate

No direct effect on heart rate
May slightly lower heart rate

Kidney Function Impact

Can affect kidney function, especially in patients with kidney disease
Less impact on kidney function

Half-Life

12 hours
30-50 hours

Frequency of Dosing

Once daily
Once daily

Metabolism

Not metabolized, excreted by the kidneys
Metabolized in the liver

Cost

Generally affordable
Generally affordable

Brands

Prinivil, Zestril
Norvasc
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Frequently Asked Questions

What is the difference between Lisinopril and Amlodipine?

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Lisinopril is an ACE inhibitor that relaxes blood vessels by blocking a hormone that causes them to tighten. Amlodipine is a calcium channel blocker that prevents calcium from entering heart and blood vessel cells, helping them relax. Both lower blood pressure but work through different mechanisms.

Which is better for high blood pressure: Lisinopril or Amlodipine?

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Both are effective, but they work differently. Lisinopril may be preferred for people with heart failure or diabetes, while Amlodipine is often chosen for patients with angina or African ancestry. Your doctor will recommend the best option based on your health needs and how you respond to treatment.

Can I take Lisinopril and Amlodipine together?

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Yes, doctors sometimes prescribe both together to better control high blood pressure. Using different classes of medications can provide a stronger blood pressure-lowering effect with fewer side effects. Always follow your healthcare provider's guidance when combining medications.

What are the side effects of Lisinopril vs Amlodipine?

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Lisinopril may cause a dry cough, dizziness, or high potassium. Amlodipine commonly causes swelling in the ankles, flushing, or headaches. Severe side effects are rare, but tell your doctor if you notice anything unusual while taking either medicine.

Which works faster: Lisinopril or Amlodipine?

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Amlodipine generally starts working within a few hours, but its full effect may take 1 2 weeks. Lisinopril may take several hours to begin lowering blood pressure, with peak effects seen in 6 8 hours. Both drugs are taken daily for steady control.

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