Toloconium methylsulphate is a quaternary ammonium antiseptic which has been used in infections of the mouth.

Losindole (BI-27,062) is an antidepressant with a tricyclic structure. It was never marketed.

Clofenetamine is a haloxanthine antihistamine compound discovered by Searle & Co in the 1940s.

Cu-64 is a radioisotope of copper with T1/2 12.7 hours. It decays by emission of beta+ particles with energies 0.653 (17.8%) MeV, which makes it suitable for positron emission tomography. The most widely used Cu chelators are DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) and TETA (1,4,8,11-tetraazacyclotetradecane-1,4,8,11-tetraacetic acid). Cu-64 acetate is used as a model compound to study metabolism and distribution of Cu-64.

Bentipimine was developed as an anticholinergic agent.

Mobenzoxamine is gastro-intestinal function modulator, that enhanced gastric emptying. In preclinical models clathrate compound of mobenzoxamine with beta-cyclodextrin showed a clear amelioration of the delayed gastric emptying induced by Barium chloride. On isolated guinea pig ileum, Mobenzoxamine inhibited contractions induced by various agonists equally to or more potently than trimebutine or papaverine.

Norbolethone is a 19-nor anabolic steroid first synthesized in 1966. During the 1960s it was administered to humans in efficacy studies concerned with short stature and underweight conditions. It has never been reported by doping control laboratories prior to 2001. Norbolethone matches the description for what is described as a "designer steroid. " In fact, Norbolethone was given in clinical trials over 30 years ago and never given the green light. No supply was ever manufactured, and no test was ever developed to detect this substance, yet ironically, it was suspected of being used in the 2000 Olympics based on blood and urine assays done by the IOC. Norbolethone was used in the treatment of idiopathic underweight, prevention of indomethacin-induced intestinal ulcers.

Igmesine is a sigma-1 receptor agonist. It was assayed in clinical trials targeting major depressive disorder. Igmesine is the only antisecretory agent that we have tested to date that inhibits both cholera toxin and the E. coli enterotoxins. Sigma receptors are known to be present on nerves in the enteric nervous system and this would seem to be a potentially useful class of drugs to pursue for the treatment of secretory diarrhoea in humans. It was shown that when Alzheimer's disease rats were submitted to the conditioned fear stress test, igmesine can significantly reduce the stress-induced motor suppression, indicating exogenous σ-1 receptor agonists may alleviate Alzheimer's disease-associated depressive symptoms.

Furaprofen (also known as R-803), a nonsteroidal drug possesses anti-inflammatory properties. This drug was studied for the treatment of rheumatoid arthritis. However, information about the further development of this drug is not available.