<prompt> All of the following are false about Tenapanor except:It is indicated for use in diarrhoea predominant IBSCan be used in children 6 yearsActs by inhibiting NHE3 on enterocytes, reducing reabsorption of sodium in small intestineConstipation is a serious adverse effect  <response>: Tenapanor Small molecule medication approved in September 2019 for the treatment of constipation-predominant irritable bowel-syndrome IBS-C. MOA - Inhibitor of the sodiumhydrogen exchanger isoform 3 NHE3 transpoer First and currently only medication within its class By inhibiting NHE3 on the apical surface of the enterocytes, tenapanor reduces absorption of sodium from the small intestine and colon, Resulting in an increase in water secretion into the intestinal lumen, which accelerates intestinal transit time and results in a softer stool consistency. Recommended dosage in adults - 50 mg orally twice daily- prior to breakfast or the first meal of the day and immediately prior to dinner CI Patients 6 years of age due to the risk of serious dehydration, Patients with known or suspected mechanical gastrointestinal obstruction 