As with other antacid products, taking these tablets can mask the symptoms of other, more serious, underlying medical conditions. If symptoms persist after fourteen days consult your doctor. Rennie Dual Action Tablets can be used during pregnancy and breast feeding if taken as instructed above. If you are taking any thiazide diuretics (e.g. bendroflumethiazide), which are used to increase urine production, then you should tell your doctor before taking the product because he or she may want to monitor the calcium levels in your blood. Patients with rare hereditary problems of fructose intolerance, glucose-galactose malabsorption or sucrase-isomaltase insufficiency should not take this medicine. Prolonged use of high doses may possibly result in hypermagnesaemia or hypercalcaemia and alkalosis (GI symptoms such as nausea and vomiting, fatigue, confusion, polyuria, polydypsia, dehydration), particularly in patients with impaired renal function. Prolonged use of high doses of calcium carbonate with milk may lead to Burnett syndrome (milkalkali syndrome).

In view of possible changes in the rate of absorption of medicines taken concomitantly, it is recommended that antacids are not administered at the same time as other medicines but taken 1 to 2 hours later. Indigestion, also known as dyspepsia, is a general term for the pain or discomfort you feel in your stomach and under your ribs, usually after eating (although you can experience similar symptoms on an empty stomach). Affecting 25-30% of UK adults, heartburn is becoming more common, possibly as a result of increased stress, unhealthy diets and over-eating. Heartburn is particularly common during pregnancy with more than 72% of pregnant women suffering during their last trimester. Adults and children over 12 only: 2 tablets to be chewed, preferably 1 hour after meals and before bedtime. For heartburn an extra 2 tablets may be taken between these times. Do not take more than 12 tablets in 24 hours.Rennie Dual Action Chewable Tablets provide fast, powerful relief from heartburn, indigestion and acid reflux by working in two ways: 1. Antacids (calcium carbonate and magnesium carbonate) get to work within two minutes, powerfully neutralising excess acid in the stomach. 2. Alginic acid soothes the burning pain in your chest, forming a protective barrier over the stomach to prevent acid escaping into the food pipe. Features This medicine is only for adults and children over 12 years. Do not give to children under the age of 12.

Rennie Dual Action has a powerful long lasting formula that works in two ways to relieve the painful symptoms of heartburn. Features This product contains 14mg of sodium (main component of cooking/table salt) in each tablet. This is equivalent to 0.7% of the recommended maximum daily dietary intake of 3/5 Rennie Dual Action Heartburn And Indigestion Tablets provide powerful long-lasting relief from the painful symptoms of heartburn and acid indigestion.

What Rennie Dual Action Tablets contain:

As with all calcium containing antacid products intake with large amounts of milk or dairy products should be refrained. Rennie Dual Action tablets provide long-lasting relief from heartburn and acid indigestion in just two minutes. Virtually everyone suffers from trapped wind at some point in their lives but many people are too embarrassed to admit it, mainly because the symptoms include bloating, gurgling noises and flatulence. The most common symptoms of trapped wind are:

The causes of heartburn and indigestion are very similar. By avoiding the following activities it is possible to reduce your chances of suffering from the symptoms of heartburn: Do not take more than 12 tablets in 24 hours. This medicine is only for adults and children over 12 years. Do not give to children under the age of 12. Prolonged use should be avoided. Prolonged use of high doses may result in undesirable side-effects such as hypercalcaemia, magnesaemia and the milk alkali syndrome, particularly in patients suffering from renal insufficiency. The product should not be taken with large amounts of milk or dairy products. Hypersensitivity reactions have very rarely been reported. Clinical symptoms may include rash, pruritus, urticaria, angioedema dyspnea and anaphylaxis. Indigestion can strike at any time and there are many different causes, from rich food and fizzy drinks to stress and eating on the run. Some people get indigestion a couple of times a year but others suffer every day with symptoms ranging from mild discomfort that lasts just a few minutes to severe pain, sometimes accompanied by nausea and vomiting, that goes on for several hours.

Thiazide diuretics reduce the urinary excretion of calcium. Due to increased risk of hypercalcaemia, serum calcium should be regularly monitored during concomitant use of thiazide diuretics.