Use: Rennie is used for symptoms associated with increased acidity of gastric juice and reflux esophagitis, such as heartburn, acid regurgitation, periodic stomach pains, feeling of fullness or heaviness in the epigastric region, dyspepsia (including those caused by dietary errors, taking medications, alcohol abuse, coffee, nicotine), as well as dyspepsia in pregnant women. How to take: Adults and children over 12 years of age should chew 1-2 tablets (or keep them in the mouth until completely dissolved) when symptoms appear. If necessary, the drug can be re-administered after 2 hours. The maximum daily dose is 11 tablets. Contraindications: - Hypersensitivity to the components of the drug. - Hypercalcemia (and/or conditions leading to hypercalcemia). - Nephrolithiasis (kidney stone disease). - Severe renal failure. - Hypophosphatemia. - Sucrase/isomaltase deficiency, fructose intolerance, glucose-galactose malabsorption (for chewable tablets). - Children under 12 years of age. - Nephrocalcinosis. Storage: The drug should be stored out of reach of children at a temperature not exceeding 25degreeC.