A-349,821
Encyclopedia
A-349,821 is a potent and selective histamine H3 receptor antagonist
(or possibly an inverse agonist
). It has nootropic
effects in animal studies, although there do not appear to be any plans for clinical development at present and it is currently only used in laboratory research.
Receptor antagonist
A receptor antagonist is a type of receptor ligand or drug that does not provoke a biological response itself upon binding to a receptor, but blocks or dampens agonist-mediated responses...
(or possibly an inverse agonist
Inverse agonist
In the field of pharmacology, an inverse agonist is an agent that binds to the same receptor as an agonist but induces a pharmacological response opposite to that agonist....
). It has nootropic
Nootropic
Nootropics , also referred to as smart drugs, brain steroids, memory enhancers, cognitive enhancers, and intelligence enhancers, are drugs, supplements, nutraceuticals, and functional foods that improve mental functions such as cognition, memory, intelligence, motivation, attention, and concentration...
effects in animal studies, although there do not appear to be any plans for clinical development at present and it is currently only used in laboratory research.