I have already chosen the drug of my choice. Its Cimetidine (H2 histamine blocker). Pharmacodynamics Describe the action of cimetidine on body receptor interactions, dose-response phenomena meachanisms of therapeutic and toxic actions Pharmacokinetics Describe what body does to cimetidine. Describe how body absorbs, distributes, metabolizes, secretes and contaminated. In your essays, consider the basic physiology of your topic. If you are discussing any pathophysiology, describe how the changes affect the body, and the mechanisms triggered to reverse these changes and restore the bodys normal function. When discussing any drugs, describe the specifics of how the drugs work, as well as considering their metabolism, elimination and side effects.