RT Book, Section A1 Stringer, Janet L. SR Print(0) ID 1142820726 T1 Cholinergic Antagonists T2 Basic Concepts in Pharmacology: What You Need to Know for Each Drug Class, 5e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259861079 LK accesspharmacy.mhmedical.com/content.aspx?aid=1142820726 RD 2024/04/19 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.