13. History of Pharmacology Paul Ehrlich described drug-receptor binding: “ Corpora non agunt nisi fixate”. P. Ehrlich (1908) ( “ Agents do not act unless they are bound”) In the United States, transformation was marked by the creation of the American Society for Pharmacology and Experimental Therapeutics (ASPET) in 1908. www.freelivedoctor.com
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25. Endogenous compounds act on their Receptors Neurotransmitter Neuropeptides Hormones Ions www.freelivedoctor.com