Common Side Effects of Lisinopril
Lisinopril, an ACE inhibitor used for high blood pressure and heart failure, most often causes dizziness (up to 19% of patients), headache (up to 6%), cough (up to 3-4%), fatigue (up to 3%), and nausea (up to 2%). These typically start early in treatment and may lessen over time.[1][2]
Serious Side Effects and Warnings
Rare but severe risks include angioedema (face, lips, tongue, or throat swelling; 0.1-0.7% incidence, higher in Black patients), which can be life-threatening and requires immediate medical attention. Hyperkalemia (high potassium levels) occurs in 1-2% of cases, especially with kidney issues or potassium supplements. Kidney function can worsen (1-2%), and persistent dry cough affects 5-20% long-term, often leading to discontinuation.[1][2][3]
Side Effects by Body System
- Cardiovascular: Hypotension (low blood pressure, 1-10%), especially after the first dose; palpitations (1-2%).
- Gastrointestinal: Diarrhea (2-3%), abdominal pain (1-2%).
- Neurological: Vertigo or malaise (1-2%).
- Skin: Rash (1-2%); rare Stevens-Johnson syndrome.
- Blood: Reduced white blood cells or anemia (under 1%).[1][2]
Who Gets Side Effects and Risk Factors
Elderly patients, those with kidney disease, diabetes, or on diuretics face higher risks of hypotension and kidney issues. Pregnancy is contraindicated due to fetal harm (Category D). Black patients have elevated angioedema risk (2-4 times higher).[1][3]
Managing or Stopping Side Effects
Cough often resolves by switching to an ARB like losartan. Monitor blood pressure and potassium regularly. Stop lisinopril and seek emergency care for angioedema symptoms like difficulty breathing or swallowing. Report persistent dizziness or fatigue to a doctor—dose adjustment or alternatives may help.[2][3]
How Lisinopril Causes Side Effects
It blocks angiotensin-converting enzyme, raising bradykinin levels (linked to cough and angioedema) and altering kidney blood flow (risking hyperkalemia or impairment).[1]
Sources
[1]: FDA Lisinopril Label
[2]: Mayo Clinic Lisinopril Side Effects
[3]: Drugs.com Lisinopril