Does the use of nizatidine (Tazac) as a prokinetic agent improve gastric emptying in patients who have had an oesophagectomy for oesophageal cancer?

The purpose of this project is to see whether nizatidine, a drug commonly used to treat peptic ulcers and reflux disease, may improve the emptying of the stomach in patients who have had an operation for oesophageal cancer. Participation in this project involves taking the trial medication for one week and having a special gastric empyting scan before and after one week of treatment with the drug. The scan involves a small dose of radiation which has been approved by the Department of Human Services, Radiation Safety Approval.