Hello, Lisinopril is a safe drug used in the treatment of high blood pressure and there are some adverse effects associated with this drug but hair loss is rarely associated with it. It s not necessary that hair loss occurs always because of some medicine that you take, it can be related to other factors. I would suggest you see a dermatologist if the problem is getting severe. Dandruff or use of chemical shampoo, stress are some other factors which lead to loss of hair. Try using mild shampoo which also helps in dandruff removal if you suffer from problem of dandruff. So see a dermatologist and get his advice on further management of your issue. He will advice you appropriate medicines if required after examining you and checking all your medical history depending on the underlying cause. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Manisha Auradkar, General & Family Physician