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.
What does a dolphin eat? Dolphin's are opportunistic feeders and they will eat most any species of fish available. Some dolphins also eat crustaceans and invertebrates. Are dolphins camouflaged? Yes, countershading is a type of camouflage found in many marine species. By having a dark back and a light belly, a bottlenose dolphin will blend into the sunlit surface waters as well as the dark ocean depths.