Exforge (generic: amlodipine/valsartan) is a prescription medicine used to treat high blood pressure. It is a single tablet containing 2 prescription medications, amlodipine and valsartan. Amlodipine belongs to a group of drugs called calcium channel blockers. It works by relaxing muscle of the heart and blood vessels. Valsartan belongs to a group of medications called angiotensin receptor blockers (ARBs). It helps blood vessels to relax.