BIBP-3226 is a drug used in scientific research which acts as a potent and selective antagonist for both the

Neuropeptide Y Neuropeptide Y (NPY) is a 36 amino-acid neuropeptide that is involved in various physiological and homeostatic processes in both the central and peripheral nervous systems. NPY has been identified as the most abundant peptide present in the ma ...

receptor Y₁ and also the neuropeptide FF receptor. It was the first non-peptide antagonist developed for the Y₁ receptor and has been widely used to help determine its functions in the body. Activation of Y₁ is thought to be involved in functions such as regulation of appetite and anxiety, and BIBP-3226 has anxiogenic and

anorectic An anorectic or anorexic is a drug which reduces appetite, resulting in lower food consumption, leading to weight loss. By contrast, an appetite stimulant is referred to as orexigenic. The term is (from the Greek ''ἀν-'' (an-) = "without" a ...

effects, as well as blocking the Y₁-mediated

corticotropin releasing hormone Corticotropin-releasing hormone (CRH) (also known as corticotropin-releasing factor (CRF) or corticoliberin; corticotropin may also be spelled corticotrophin) is a peptide hormone involved in stress (biology), stress responses. It is a releasing ...

release. It has also been used as a

lead compound A lead compound (, i.e. a "leading" compound, not to be confused with various compounds of the metallic element lead) in drug discovery is a chemical compound that has pharmacology, pharmacological or biological activity likely to be therapeutical ...

to develop a number of newer more potent Y₁ antagonists.

References

Neuropeptide Y antagonists {{nervous-system-drug-stub