RT Book, Section A1 Stringer, Janet L. SR Print(0) ID 1187633330 T1 Cholinergic Antagonists T2 Basic Concepts in Pharmacology: What You Need to Know for Each Drug Class, 6e YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264264841 LK accesspharmacy.mhmedical.com/content.aspx?aid=1187633330 RD 2024/03/28 AB The drugs in this group antagonize the effects of acetylcholine. Most of these drugs are antagonists directly at the nicotinic or muscarinic receptor. Some act on the ion channel associated with the nicotinic receptor, and still others block acetylcholine release.