Contains calcium carbonate,magnesium carbonate,simeticone.Rennie Deflatine relieves the discomfort of trapped wind and its associated symptoms of bloating, pressure and fullness after food. It has been formulated with simeticone, a highly effective ingredient which relieves the symptoms of trapped wind. It acts to gently disperse the trapped air bubbles thus helping to eliminate the symptoms discreetly and without embarrassment. This product also has antacid properties meaning it can neutralise any excess acid which causes associated symptoms of indigestion.Rennie Deflatine is a registered trademark.DOSAGE; as soon as any discomfort is felt, suck or chew 1 or 2 tablets upto a maximum of 16 hours in 24 hours.RENNIE DEFLATINE MAY BE TAKEN DURING PREGNANCY