Adalat LA 30mg TabletsAdalat LA contains nifedipine, which belongs to a group of medicines called calcium antagonists. Adalat LA is used to treat high blood pressure or angina (chest pain). For high blood pressure: Adalat LA works by relaxing and expanding the blood vessels. This makes the blood flow more easily and lowers blood pressure. Lower blood pressure reduces the strain on your heart. For angina: Adalat LA works by relaxing and expanding the arteries supplying the