Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. UB-165 is a drug which acts as an agonist at neural nicotinic acetylcholine receptors being a full agonist at 3 2 and a partial agonist for the 4 2 isoform. It is used to study the role of this receptor subtype in the release of dopamine and noradrenaline in the brain, and has also been used as a lead compound to derive a number of other selective nicotinic receptor ligands.