AFDX-384 (BIBN-161) is a drug which acts as a selective
antagonist
An antagonist is a character in a story who is presented as the chief foe of the protagonist.
Etymology
The English word antagonist comes from the Greek ἀνταγωνιστής – ''antagonistēs'', "opponent, competitor, villain, enemy, riv ...
of the
muscarinic acetylcholine receptor
Muscarinic acetylcholine receptors, or mAChRs, are acetylcholine receptors that form G protein-coupled receptor complexes in the cell membranes of certain neurons and other cells. They play several roles, including acting as the main end-rece ...
s, with selectivity for the
M2 and
M4 subtypes. It is used mainly for mapping the distribution of M
2 and M
4 muscarinic receptors in the brain, and studying their involvement in the development and treatment of
dementia
Dementia is a disorder which manifests as a set of related symptoms, which usually surfaces when the brain is damaged by injury or disease. The symptoms involve progressive impairments in memory, thinking, and behavior, which negatively affe ...
and
schizophrenia
Schizophrenia is a mental disorder characterized by continuous or relapsing episodes of psychosis. Major symptoms include hallucinations (typically hearing voices), delusions, and disorganized thinking. Other symptoms include social withdra ...
.
See also
*
Pirenzepine
Pirenzepine (Gastrozepin), an M1 selective antagonist, is used in the treatment of peptic ulcers, as it reduces gastric acid secretion and reduces muscle spasm. It is in a class of drugs known as muscarinic receptor antagonists - acetylchol ...
(M
1 selective antagonist)
References
{{Muscarinic acetylcholine receptor modulators
Muscarinic antagonists
Piperidines
Ureas
Benzodiazepines
Pyridodiazepines