<prompt> Action of truncal vagotomy is equal to that ofAntacidsH2 blockersProton pump inhibitorsAll of the above  <response>: C Proton pump inhibitors In addition to Truncal vagotomy, the antrum of stomach was removed, thus eradicating the source of gastrin, and the gastric remnant was joint to the duodenum. Proton pump inhibitors can effectively render a patient achlorhydric and all benign ulcers will heal using these drugs. 