Lisinopril is an ACE inhibitor (brand names Prinivil and Zestril) that relaxes and widens blood vessels, lowering blood pressure and easing the heart’s workload. It’s used to treat high blood pressure, help prevent strokes, kidney problems, and heart attacks, treat heart failure, and improve survival after a heart attack. It’s taken once daily by mouth, with or without food, in strengths ranging from 2.5 mg up to 40 mg. Here’s what to watch for and 10 practical tips to reduce long-term side effect risk.
Key Takeaways
- Lisinopril should be avoided throughout pregnancy, not just the 2nd and 3rd trimesters — discontinue as soon as pregnancy is planned or detected.
- Green tea can reduce lisinopril absorption by roughly two-thirds, a well-documented interaction that can weaken blood pressure control.
- Photosensitivity (increased sun sensitivity) is a real, currently recognized side effect of lisinopril.
- Lisinopril taken alone doesn’t meaningfully raise uric acid or worsen gout — but the combination pill (lisinopril/HCTZ) does, via its HCTZ component, so check which one you’re actually taking.
- Regular NSAID use, high potassium intake, and rapid position changes all carry documented, ongoing risks worth monitoring with your doctor.
Possible Side Effects to Know
Dizziness or lightheadedness, especially when standing up.
Signs of kidney injury: reduced urination, swelling of the feet and ankles, fatigue, shortness of breath.
Signs of a liver problem: yellowing of the skin or eyes, loss of appetite, nausea, vomiting, fatigue, and stomach aches.
Signs of high potassium: nausea, chest pain, weakness, irregular heartbeat, unsteadiness.
Signs of an allergic reaction (call your doctor immediately): swelling of the lips, face, tongue, or throat, difficulty breathing, wheezing, rash, or itching.
A dry, persistent cough — one of the more common side effects, which can appear days, weeks, months, or even years after starting the medication. Mention it to your doctor if it develops.
Less common side effects: headache, impotence, blood disorders, ringing in the ears, and blurry vision.
Pregnancy Warning
ACE inhibitors like lisinopril should not be used during pregnancy. Use during the second and third trimesters carries a well-documented risk of fetal and neonatal complications, including reduced kidney function, low amniotic fluid, and related developmental problems. Current guidance also notes a smaller but real risk during the first trimester — one large cohort study found a higher rate of cardiovascular and central nervous system birth defects with first-trimester ACE inhibitor exposure compared to no exposure. Because of this, the recommendation is to avoid lisinopril throughout pregnancy where possible, and to discontinue it and switch to an alternative as soon as pregnancy is planned or detected, rather than waiting until later trimesters.
Drug Interactions
Several medications can interact with lisinopril; this isn’t an exhaustive list, so it’s worth reviewing your specific medications with your doctor or pharmacist.
10 Tips to Help Avoid Long-Term Side Effects
1. Rise Slowly
Especially in the