While looking into Maylox for Jason regarding his stomach woes I found the strangest article regarding this stomach cure.
Dolphins in captivity can't use their most astonishing gift - eco-location - because they have no fish to catch or world to discover. This is the equivalent of forcing a person to walk around in a blindfold for the rest of his life. Dolphins in tanks, in a futile effort to exercise this instinct, suffer a second time, as their sonar signals bounce back at them. Imagine sitting in a steel barrel while people pound on the outside with hammers. This makes the dolphins extremely queasy, so trainers keep a steady supply of Maylox and Pepto-Bismol on hand.
You can read more Dolphin facts here.