My Dr. gave me samples of lisinopril hct to take and by the 3rd week I was coughing my brains out.side effect! Then he gave me benecar hct and I have been having a headache when I wake in the morning. Now... he gave me diovan hct and to tell you the truth I am scared to take it, with all I have read, about hair falling out and so on... I don't know what to do, go back to the benecar hct and have the headaches??? Or try the diovan??