Ranitidine is a competitive, reversible inhibitor of the action of histamine at the histamine H2-receptors, including receptors on the gastric cells. Ranitidine does not lower serum Ca++ in hypercalcemic states. Ranitidine is not an anticholinergic agent.
1 The Blue Marlins have a diet of: Octopi, squid and pelagic fish such as black fin tuna and frigate mackerel.  They do prefer to hunt alone and during the day, rather than in schools, so it is safe to say they are a rather antisocial species.
Although bluegill are the prevalent sunfish in most bass water throughout the United States, other species play a roll in the mix of sunfish predation by bass. Largemouth will eat green sunfish, pumpkinseed, rock bass, longear and even crappie. Many of these other more aggressive sunfish can force bluegill out of the grass into open water. If the impoundment gets overpopulated, bluegill will eat their own eggs.