Andarine is an investigational selective androgen receptor modulator (SARM) developed by GTX, Inc for treatment of conditions such as muscle wasting, osteoporosis and benign prostatic hypertrophy. Andarine is a selective non-steroidal androgen receptor (AR) agonist with Ki of 4 nM, tissue-selective for anabolic organs. Andarine had been in phase I clinical trials by GTx for the treatment of cancer-related cachexia and osteoporosis. However, this research has been discontinued.

BMS-564929 is an investigational selective androgen receptor modulator, which is being developed by Bristol-Myers Squibb for treatment of the symptoms of age-related decline in androgen levels in men ("andropause"). Bristol-Myers Squibb presented data for BMS 564929 that showed favorable pharmacokinetics and the potential for use at a very low dose (0.03mg).

4-Methoxyamphetamine (Para-methoxyamphetamine, PMA) is a synthetic drug chemically similar to the recreational drug 3,4-methylenedioxymethamphetamine (MDMA or "ecstasy") and often replaces MDMA in tablets. Numerous cases of intoxication have been documented and fatal cases involving PMA have been described. PMA induces toxicity at lower doses than MDMA. Clinical symptoms specific to PMA poisoning include life-threatening hyperthermia, breathing difficulties, tachycardia, rhabdomyolysis, and acute renal failure. In the scarce studies conducted in laboratory animals, PMA has shown cardiovascular alterations in dogs, hyperthermia on a high ambient temperature, hallucinogen properties, and disruption of operant behavior in rats. A slight motor activity stimulation, lower than that induced by MDMA, has also been reported. The effects of PMA on brain neurotransmission are similar to those of MDMA, thus, PMA increases serotonin (5-hydroxytryptophan or 5-HT) release from the synaptic terminal and blocks its reuptake; it also acts upon noradrenergic and dopaminergic terminals but in a lesser proportion, and can also delay the metabolism of these monoamines by inhibition of monoamine oxidase (MAO)

Homoveratrylamine (3,4-dimethoxyphenethylamine, DMPEA) is an analog of the major neurotransmitter dopamine where 3- and 4- position hydroxyl groups are replaced with methoxy groups. DMPEA is a metabolite of dopamine and is reported to be produced at elevated levels in patients with schizophrenia and Parkinson's disease. DMPEA inhibited monoamine oxidase and demonstrated no peripheral and central antidopaminergic activity in vivo.

4'-Chlordiazepam or Ro5-4864 (7-chloro-5- (4-chlorophenyl)-1,3-dihydro-1-methyl-2-H-1,4-benzodiazepine-2)) is a ligand of peripheral-type benzodiazepine receptor (translocator protein or Tspo). It exerts neurosteroidogenic activity. 4'- chlordiazepam is sedative, convulsant and anxiogenic in rodents.