RT Book, Section A1 Trevor, Anthony J. A1 Katzung, Bertram G. A1 Kruidering-Hall, Marieke M. A1 Masters, Susan B. SR Print(0) ID 56981292 T1 Chapter 16. Histamine, Serotonin, & the Ergot Alkaloids T2 Katzung & Trevor's Pharmacology: Examination & Board Review, 10e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-178923-3 LK accesspharmacy.mhmedical.com/content.aspx?aid=56981292 RD 2024/04/18 AB Autacoids are endogenous molecules with powerful pharmacologic effects that do not fall into traditional autonomic groups. Histamine and serotonin (5-hydroxytryptamine; 5-HT) are the most important amine autacoids. The ergot alkaloids are a heterogeneous group of drugs (not autacoids) that interact with serotonin receptors, dopamine receptors, and α receptors. They are included in this chapter because of their effects on serotonin receptors and on smooth muscle. Peptide and eicosanoid autacoids are discussed in Chapters 17 and 18. Nitric oxide is discussed in Chapter 19.