Why is Ranitidine prescribed to patients who had colectomy?

Ranitidine is prescribed to patients who have undergone a colectomy primarily to reduce gastric acid production and prevent complications such as gastroesophageal reflux disease (GERD) or ulcer formation. After surgery, patients may experience changes in gastrointestinal function, which can increase the risk of acid-related issues. Ranitidine helps promote healing and comfort by managing these potential complications. However, it's important to note that ranitidine has been withdrawn from many markets due to safety concerns related to impurities, so alternatives may be used.