Adalat Retard contains nifedipine which belongs to a group of medicines called calcium antagonists. Adalat Retard is used to treat high blood pressure or angina (chest pain). For high blood pressure: Adalat Retard work 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 Retard works by relaxing and expanding the arteries supplying the heart. This allows more blood and oxygen to reach the heart and decreases the strain on it. Your angina attacks will be less severe and less frequent if there is less strain on the heart. Adalat Retard Tablets 20mg are grey-pink circular tablets marked with ‘IU’ on one side and a Bayer cross on the reverse or grey-pink circular tablets marked with ‘A20’ on one side and the Bayer cross on the reverse. Each grey-pink circular tabletcontains 20mg of the active ingredient nifedipine. Adalat Retard Tablets 20mg also contain microcrystalline cellulose polysorbate 80 hypromellose lactose maize starch macrogol and magnesium stearate. Titanium dioxide (E171) and iron oxide (E172) are included as colouring agents. Your medicine comes in packs of 60 tablets. The active ingredient nifedipine is one of a group of medicines called calcium antagonists. These relax and expand blood vessels.