high blood pressure
"I am 27 years old and have been taking lisinopril for almost 2 years for high blood pressure, which also caused very frequent headaches. I was first prescribed 10 mg per day. I had a lot of light headedness and I actually fainted once. My cardiologist then lowered my dosage to 5 mg per day. My headaches are virtually gone. I haven't had a true migraine since I started on the drug. I have woken twice with a swollen eye, which I didn't connect to lisinopril until I read the comments here, but other than that, I've had zero side effects since switching to the 5 mg."