Can bentyl (dicyclomine) mask the symptoms of gastric cancer?

Hard 2 answer.. ...Because gastric cancer often causes no symptoms until it spreads and then the symptoms will depend on where it went to and whether it's causing blockage. My answer would be: Bentyl (dicyclomine) may potentially hide some symptoms but not for long. It seems you had an endoscopy already, though, so i'm not sure why you are so concerned about this. Gastric cancer in a young person like you would be unlikely.