appetite

L-Cysteine (L-(+)-Cysteine) is a non-essential sulfur-containing amino acid in humans. L-Cysteine is important for protein synthesis, detoxification, and diverse metabolic functions. Found in beta-keratin, the main protein in nails, skin, and hair, L-Cysteine is important in collagen production, as well as skin elasticity and texture. Also required in the manufacture of amino acid taurine, L-Cysteine is a component of the antioxidant glutathione, and plays a role in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin.

Sucralose is a non-nutritive artificial sweetener and sugar substitute that stimulates appetite in rodents by activating a conserved neural fasting response.

Semaglutide is a long-acting, selective, competitive GLP-1R agonist and a long-acting analog of human glucagon-like peptide-1, exhibiting potent hypoglycemic, weight-loss, cardioprotective, and neuroprotective effects. Upon activation of the GLP-1R, semaglutide promotes insulin secretion, inhibits gastric emptying and appetite, while also enhancing autophagy and suppressing oxidative stress and apoptosis. Semaglutide also plays a role in regulating mitochondrial function and lipid metabolism. Semaglutide is being investigated for use in type 2 diabetes, obesity, Parkinson’s disease, metabolic and fatty liver diseases (MASLD), and other neurodegenerative and liver diseases, as well as in cancer research.

Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist. This compound mimics GLP-1 to lower blood glucose levels and stimulates the growth of pancreatic β-cells responsible for insulin production and release. Additionally, Semaglutide inhibits the production of glucagon, a hormone that enhances glycogenolysis [the release of liver-stored carbohydrates] and gluconeogenesis [the synthesis of new glucose]. By reducing appetite and slowing gastric emptying, it also helps decrease food intake and aids in reducing body fat.

Liraglutide sodium salt is a glucagon-like peptide-1 (GLP-1) receptor agonist that, by mimicking the functions of endogenous GLP-1, promotes glucose-dependent insulin secretion in the pancreas and regulates appetite in the central nervous system, thereby effectively controlling blood glucose and reducing body weight.

PF-07258669 is a small-molecule compound and a melanocortin 4 receptor (MC4R) antagonist (IC50 = 13 nM, Ki = 0.46 nM) with high selectivity, oral bioavailability, and favorable pharmacokinetic properties. This compound can be used for research on diseases such as cachexia and anorexia.

L-5-Hydroxytryptophan (L-5-HTP) is a naturally occurring amino acid and dietary supplement that serves as a precursor to the neurotransmitter serotonin. It can be used as an antidepressant, appetite suppressant, and sleep aid, and acts as an antagonist to reserpine. L-5-HTP is widely used in research on myoclonus, fibromyalgia, migraine, and cerebellar ataxia, and is also commonly used to induce epilepsy models.

Pizotifen (Pizotyline) is a strong serotonin and tryptamine antagonist, with weak anticholinergic, anti-histaminic and anti-kinin effects. It also possesses sedative and appetite-stimulating properties. Pizotifen hydrochloride is an active ingredient in Sandomigran, which is used for the prophylactic management of migraine. Sandomigran is available in number of countries excluding the United States.

Rimonabant (SR141716) is an inverse agonist for the cannabinoid receptor CB1. It is an anorectic anti-obesity drug produced and marketed by Sanofi-Aventis. Its main avenue of effect is a reduction in appetite. Rimonabant is the first selective CB1 receptor blocker to be approved for use anywhere in the world. Rimonabant is approved in 38 countries including the E.U., Mexico, and Brazil. It was rejected for approval for use in the United States.

L-Cysteine hydrochloride (L-Cysteine HCl) is a conditionally essential amino acid,L-Cysteine hydrochloride suppresses ghrelin and reduces appetite in rodents and humans

Benzylacetone (4-Phenyl-2-butanone) is an aromatic compound extracted from incense wood. Benzylacetone has appetite-enhancing and exercise-reducing properties. Benzylacetone has a strong and reversible anti-mushroom tyrosinase effect, with IC50 values of 2.8 mM and 0.6 mM for monophenolase and biphenolase effects, respectively.

L-Cysteine hydrochloride hydrate (L-Cysteine hydrochloride monohydrate) is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), taurine and glutathione. L-Cysteine hydrochloride hydrate suppresses ghrelin and reduces appetite in rodents and humans.

Neosolaniol, a type A trichothecene mycotoxin produced by Fusarium species, strongly induces an anorectic (loss of appetite) response.

N-desmethylmirtazapine (J1.061.658A) is a metabolite of mirtazapine. N-desmethylmirtazapine is also commonly used as an anxiolytic, hypnotic, antiemetic, and appetite stimulant.

Amfepentorex fumarate was marketed as an appetite suppressant.

Amfepentorex was marketed in France during the 1970s as an appetite suppressant.

Fluminorex is a compound used to suppress appetite.

Setazindol is a compound used to suppress appetite.

Elfazepam is a benzodiazepine compound with appetite-stimulating properties.

Delta8-THC acetate (Delta8-tetrahydrocannabinol) is a psychoactive cannabinoid that binds to the cannabinoid receptor 1 (CB1 receptor) and exhibits anti-nausea, appetite-stimulating, and anti-inflammatory effects. It may also offer neuroprotective benefits and has potential applications in research on anxiety and depression.

FFA2 agonist-1 (Compound 4) is an agonist of the free fatty acid receptor 2 (FFA2/GPR43) with an EC50 of 81 nM. It demonstrates activity in β-arrestin-2 recruitment and cAMP inhibition assays, with EC50 values of 1.2 μM and 0.53 μM, respectively. FFA2 agonist-1 can induce the mucosal response of appetite-regulating peptide YY (PYY), inhibit fat accumulation, and affect intestinal function and food intake, making it useful for obesity research.

GLP-1R modulator-1 (Compound 384) is a potent and orally active selective agonist of the glucagon-like peptide-1 receptor (GLP-1R). It activates G protein-coupled signaling, leading to increased intracellular cAMP levels, enhanced insulin secretion, delayed gastric emptying, and reduced appetite. GLP-1R modulator-1 holds potential for research in type 2 diabetes, obesity, and non-alcoholic steatohepatitis (NASH).

Megestrol is a synthetic progestin exhibiting androgenic, corticosteroid, and progestational properties. It stimulates appetite and is indicated for anorexia and weight loss in patients with acquired immunodeficiency syndrome (AIDS).

TGR5 agonist 8 (Compound 7i) is a TGR5 activator with an EC₅₀ of 571 nM. It significantly reduces blood glucose levels and food intake in mice with acute diabetes and suppresses appetite over a longer period. TGR5 agonist 8 is applicable for research in diabetes and obesity.