Mibampator, also known as LY451395, is a potent and highly selective an AMPA receptor potentiator, which plays a role in the regulation of the glutamatergic system. The AMPA system also has important functions in the regulation of synapses, synaptic regeneration, and neuroprotection and is therefore a good therapeutic target for treatments aiming to improve cognition and function or alter disease progression. Mibampator was in the phase II clinical trial for the treatment of agitation and aggression in Alzheimer's disease (AD).

Baicalein is a flavonoid is a component of the traditional herbal remedy known as Chinese skullcap (or Huang Qin), possesses various biological activities. Baicalein is a neuroprotective agent, which is studied in phase I for the treatment of Parkinson’s disease. By modulating of γ-aminobutyric acid (GABA) type A receptors, baicalein promotes nonamyloidogenic processing of amyloid precursor protein (APP), thereby reducing β-amyloid (Aβ) production and improving cognitive performance in models of Alzheimer's disease. By inhibiting the NF-κB signaling pathway, baicalein suppressed cancer cells proliferation and suppressed the viability of human endometrial stromal cells, thus it may provide a novel treatment option for endometriosis. Besides, this compound was evaluated for its ability to inhibit the influenza virus. Experiments on mice have shown that baicalein showed significant effects in preventing death, increasing the mean time to death and reducing the lung virus titer in a dose-dependent manner.

Farampator (CX 691, ORG 24448 or (1-(benzofurazan-5-ylcarbonyl) piperidine)) is a positive allosteric modulator of the alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptors. Farampator exerts antipsychotic and cognitive enhancing properties.

Etiocholanone is an androstane neurosteroid. Etiocholanone potentiates GABA-A receptor currents and exerts anticolvunsant properties in rodents. Etiocholanolone demostrates pyrogenic properties.

Indiplon is a nonbenzodiazepine, hypnotic sedative that was proposed for the treatment of insomnia. It is a high-affinity allosteric potentiator of GABAA responses that demonstrates preference for α1 subunit-containing GABAA receptors. There is minimal potential for adverse effects, residual daytime sedation, tolerance, respiratory depression. The simultaneous administration of indiplon and alcohol did not result in any significant pharmacokinetic changes. There is little risk of pharmacokinetic interaction between indiplon and any co-administered drugs. Developer (Neurocrine) decided to discontinue all clinical and marketing development of Indiplon in the United States.

T-62 ((2-amino-4,5,6,7-tetrahydro-1-benzothien-3-yl)(4-chlorophenyl)methanone) is a small-molecule allosteric potentiator of agonist function at the adenosine A1 receptor, developed by Edward Leung for the treatment of various pain states in a mammal and human subjects.

Ocinaplon is anxiolytic in rodents and primates, including humans, with a magnitude of effect comparable to benzodiazepines. It was evaluated to treat Generalised anxiety disorder. The mechanism of action by which ocinaplon produces its anxiolytic effects is by allosteric modulating of GABA-A receptors. The serious adverse event detected in the ocinaplon group was icterus following transaminase elevations. Due to liver complications that occurred in Phase III, development of ocinaplon is discontinued.

Chloralose (alpha-Chloralose, 1,2-O-(2,2,2-Trichloroethylidene)-α-D-glucofuranose) is an avicide, and a rodenticide commonly used for the control of mice and birds. Since its initial description in 1893, alpha-chloralose has undergone extensive pharmacologic evaluation. It has been characterized as a compound possessing potent CNS activity and has been evaluated in humans and animal models for its therapeutic properties. Though the toxicity of the compound prohibits its use as a human therapeutic agent, it has been employed widely as an animal anesthetic in the laboratory setting. α-Chloralose is widely used as an anesthetic in studies of the cerebrovasculature because of its presumed minimal depression of autonomic function. α-Chloralose acts as the positive allosteric modulator of GABA-A receptor and increases the affinity for GABA 5-fold and produced a small increase in the efficacy of GABA. Studies of α-Chloralose interactions with other allosteric modulators determined that α-Chloralose binds to a site on the GABAA receptor complex distinct from the benzodiazepine, neurosteroid and barbiturate sites.

Androsterone, a neurosteroid, acts as a positive allosteric modulator of GABA(A) receptors, that can cross into the brain and could have effects on brain function. It was discovered, that the association of beta subunits with alpha subunits GABA(A) receptor affects the sensitivity of glycine receptors to androsterone. In spite of that, androsteron is considered as an inactive metabolite of testosterone. In addition, was studied that androsterone possessed anticonvulsant properties. Although of low potency, the androsterone was present in high abundance and was able to represent endogenous modulator of seizure susceptibility.

RAC BHFF is the potent and selective GABAB receptor positive allosteric modulator that increases the potency and efficacy of GABA. Exhibits anxiolytic and anticonvulsant activity in vivo and is orally active. RAC BHFF reduces alcohol’s reinforcing properties in alcohol-preferring rats and adds further support to the hypothesis that the positive allosteric modulators of the GABAB receptor may constitute a novel class of agents with therapeutic potential for alcohol dependence.