I have been taking Cardizem or a generic form (240 mg) of same f...

I have been taking Cardizem or a generic form (240 mg) of same for 11 years for slightly high blood pressure, this with minimal side effects. Recently, for some reason my blood pressure was up somewhat. My doctor wants to add 10 mg of Lisinopril. After extensive research and reading this website, I have valid reservations. I do not think it in my best interest to take the additional Lisinopril, especially if sexual related problems and loss of taste are a part of the side effects. I watch my salt intake and diet. Any feedback or suggestions is much appreciated.