My opinion is there are alot safer drugs than lisinopril. Why my Dr. insisted I Take it is beyond me. I had a bad cough, fatigue and lightheadedness to name a few, and my Dr. insisted I stay on it plus increase the dosage to 30mg. A couple days later my heart was racing & felt like it was pounding out of my chest. I imediately stopped lisinopril and went back to my old med. (ziac) My Doctors response was "OK whatever you want to do." I don't intend to see him again!