AM-6545
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AM-6545 is a drug which acts as a peripherally selective silent antagonist for the CB1
receptor Receptor may refer to: * Sensory receptor, in physiology, any structure which, on receiving environmental stimuli, produces an informative nerve impulse *Receptor (biochemistry), in biochemistry, a protein molecule that receives and responds to a ...
, and was developed for the treatment of
obesity Obesity is a medical condition, sometimes considered a disease, in which excess body fat has accumulated to such an extent that it may negatively affect health. People are classified as obese when their body mass index (BMI)—a person's we ...
. Other
cannabinoid antagonist A cannabinoid receptor antagonist, also known simply as a cannabinoid antagonist or as an anticannabinoid, is a type of cannabinoidergic drug that binds to cannabinoid receptors (CBR) and prevents their activation by endocannabinoids. They include ...
s such as
rimonabant Rimonabant (also known as SR141716; trade names Acomplia, Zimulti) is an anorectic antiobesity drug that was first approved in Europe in 2006 but was withdrawn worldwide in 2008 due to serious psychiatric side effects; it was never approved in t ...
have been marketed for this application, but have subsequently been withdrawn from sale because of centrally mediated side effects such as depression and
nausea Nausea is a diffuse sensation of unease and discomfort, sometimes perceived as an urge to vomit. While not painful, it can be a debilitating symptom if prolonged and has been described as placing discomfort on the chest, abdomen, or back of the ...
. Because AM-6545 does not cross the
blood–brain barrier The blood–brain barrier (BBB) is a highly selective semipermeable membrane, semipermeable border of endothelium, endothelial cells that prevents solutes in the circulating blood from ''non-selectively'' crossing into the extracellular fluid of ...
to any significant extent, it does not produce these kinds of side effects, but has still been shown to effectively reduce appetite and food consumption in animal studies.


See also

*
CB-13 CB-13 (CRA13, SAB-378) is a cannabinoid drug, which acts as a potent agonist at both the CB1 and CB2 receptors, but has poor blood–brain barrier penetration, and so produces only peripheral effects at low doses, with symptoms of central effec ...
– a peripherally selective cannabinoid agonist * O-2050 – a centrally active CB1 silent antagonist *
Methylnaltrexone Methylnaltrexone (MNTX, brand name Relistor), used in form of methylnaltrexone bromide (INN, USAN, BAN), is a medication that acts as a peripherally acting μ-opioid receptor antagonist that acts to reverse some of the side effects of opioid dr ...
– a peripherally selective mu opioid receptor antagonist * TM-38837 - another peripherally selective cannabinoid antagonist


References

{{Cannabinoids AM cannabinoids CB1 receptor antagonists Peripherally selective drugs