high blood pressure
"I've been taking Diovan HCT (80/12.5) for a little over one year.  It has done the trick on my blood pressure but leaves me with a slight headache and afternoon lethargy.  After about 8:00 pm I usually start to feel better.  My doctor and I tried 3 other medicines before Diovan HCT with no results.  I don't know if the side effects are something I will just have to live with or not.  I will discuss this on my next Dr.'s visit."