How common are lisinopril side effects?

Q: Why does lisinopril cause a cough?

The dry, persistent cough from lisinopril affects 5-20% of patients and is caused by the buildup of bradykinin and substance P in the lungs. ACE inhibitors block the enzyme that breaks down these peptides, and they accumulate in the airways, causing irritation. The cough is typically dry, tickly, wo

Q: Are there natural alternatives to lisinopril?

Lifestyle modifications are remarkably effective for blood pressure reduction. The DASH diet can lower systolic blood pressure by 8-14 mmHg. Reducing sodium intake (under 2,300 mg/day) lowers it by 5-6 mmHg. Regular aerobic exercise (150 min/week) reduces it by 5-8 mmHg. Weight loss of 10 lbs reduce

Direct Answer

The most distinctive side effect of lisinopril is a persistent dry cough, affecting 5-20% of patients — caused by bradykinin accumulation in the lungs. Other common side effects include dizziness (5-12%, especially when standing), headache (5-6%), and fatigue (3%). Elevated potassium (hyperkalemia) occurs in 2-6% of patients, which is why periodic blood tests are recommended. Angioedema — sudden swelling of the face, lips, or throat — is rare (0.1-0.7%) but potentially life-threatening and requires immediate medical attention. Overall, ACE inhibitors like lisinopril are well-tolerated long-term by most patients.

Based on published clinical trial data and FDA prescribing information. This is not medical advice — always consult your healthcare provider.

Supporting Evidence

Side Effects

Dry persistent cough10-15%

Dizziness / lightheadedness12%

Headache6%

Fatigue5%

High potassium (hyperkalemia)5%

Serious (rare)

Angioedema (life-threatening face/throat swelling) — 0.1%
Kidney failure
High potassium (dangerous levels)

Drug Interactions

MAJOR

Potassium supplements— Fatal hyperkalemia

MAJOR

NSAIDs (ibuprofen)— Kidney failure, reduced BP control

MOD

Lithium— Elevated lithium toxicity

MOD

Diabetic drugs— Enhanced hypoglycemia

Clinical Trials

Works but lifestyle = -11mmHg without drugs

ALLHAT (NIH)

Funding transparency: ALLHAT: Fully funded by the NIH National Heart, Lung, and Blood Institute. No pharmaceutical company sponsorship identified. See full funding details

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