Want to change Diovan (valsartan) to another med, what else works with less side effects?

Side effects. Any medicine that you take has side effects and Diovan (valsartan) has a very good side effect profile. When you take any medicine to lower your blood pressure you may feel a little sluggish at first until your body gets used to the lower blood pressure. Since you didn't mention what the side effects are, you should discuss with your physician.