In general calcium containing antacids should be carefully administered in patients with constipation, haemorrhoids and sarcoidosis. 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:

If Rennie Extra tablets are used in such patients, plasma concentrations of calcium, phosphate and magnesium should be monitored regularly. Rennie is designed to help relieve pain and discomfort associated with excess stomach acid. Pain/discomfort associated with cardiac conditions may on occasion mimic indigestion; such pain will not respond to Rennie, therefore it is recommended that As Rennie Dual Action Tablets provide a substantial amount of calcium in addition to dietary calcium intake pregnant women should strictly limit their use of Rennie Dual Action Tablets to the maximum recommended daily dose and avoid concomitant, Heartburn is an unpleasant condition that occurs when acid from the stomach rises up into the oesophagus and the throat where it causes a burning pain. This action is called acid reflux.The pain of heartburn can last for several hours or more and is often made worse by eating. Many people suffer sleepless nights as a result of heartburn because lying down can trigger the condition and increase the pain. Each tablet contains calcium carbonate, magnesium carbonate, alginic acid amongst other ingredients – please see leaflet for more information.Alginic acid forms a protective barrier in the stomach to stop acid from escaping upwards, soothing that burning pain in your chest 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: 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.

Rennie Dual Action Tablets can be used during pregnancy and breast feeding if taken as instructed above. Long term use of high doses can cause high blood levels of calcium and magnesium, especially in people with kidney conditions. This can cause nausea and vomiting, upset stomach, diarrhoea, tiredness, muscular weakness, confusion, increased urine production, increased thirst and dehydration.

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Trapped wind in your abdomen can be caused by excess swallowed air moving from the stomach into the intestines where it can make you feel bloated until the air is released as flatulence. If you wear clothes that fit tightly around your waist this will increase the pressure on your abdomen and make you even more uncomfortable. Another cause of abdominal bloating is gas produced by bacteria in your colon as they break down the residue from the small intestine. Most of this gas is absorbed into your blood stream, the rest is released as flatulence.