Menadiol sodium sulfate is a metabolite of one of the forms of vitamin K4, which was found in a biofluid of rodents.

Eucatropine is known as an anticholinergic agent, which acts as antagonist of muscarinic cholinergic receptors.

Phosphorylcholine (ChoP) is a small zwitterionic amino alcohol, which is composed of a negatively charged phosphate bonded to a small, positively charged choline group. Phosphorylcholine is the precursor metabolite of choline in the glycine, serine, and threonine metabolism pathways and in intermediate between choline and cytidine-diphosphate choline in the glycerophospholipid metabolism pathway. Phosphorylcholine is an interesting compound from an immunologic point of view, being an immunodominant determinant of pneumococcal teichoic acids and also a major prerequisite for proinflammatory effects of PAF and PAF-like lipids where PC is a common denominator. PC is also a component of some bacteria, apoptotic cells, and OxLDL, which, if exposed, is immunogenic. PC has several properties that could in principle both promote and protect against disease, depending on the pathogen and type of inflammatory reaction. In the field of interventional cardiology, phosphorylcholine is used as a synthetic polymer-based coating, applied to drug-eluting stents, to prevent the occurrence of coronary artery restenosis. To date, more than 120,000 Phosphorylcholine-coated stents have been implanted in patients with no apparent deleterious effect in the long term compared to bare metal stent technologies

Ufiprazole (Omeprazole sulfide) is a metabolite of Omeprazole, which is a proton pump inhibitor. Omeprazole sulfide has been shown to be a direct-acting inhibitor of CYP2C19 in pooled human liver microsomes. Ufiprazole is also a weak BRS-3 agonist.

Bisphenol A is a small estrogenic monomer that is polymerized to produce polycarbonate plastic and resins used to line metal cans. It is also used to make some dental sealants. Bisphenol A had been considered to be a very weak environmental estrogen. It is able to interact with human estrogen receptors. In addition, it binds strongly to the estrogen-related receptor gamma. Bisphenol A inhibited androgen-induced androgen receptor transcriptional activity. Prenatal exposure to maternal Bisphenol A concentrations were related to higher levels of anxiety, depression, aggression, and hyperactivity in children. Bisphenol A exposure in childhood was associated with higher levels of anxiety, depression, hyperactivity, inattention, and conduct problems. It never found use as a drug.

Propoxate (R7464) is a potent anesthetic agent in cold-blooded vertebrates, which has never been marked and has never been used on humans.

There is no much available information related to the biological and pharmacological application of imidoline, but this compound has been found to be as potent as chlorpromazine in increasing striatal DOPA accumulation and prolactin secretion in vivo. Imidoline exhibited only weak inhibitory activity towards dopamine-sensitive adenylate cyclase and 3H-spiroperidol binding to striatal membranes in vitro. A proposed active conformation involves intramolecular hydrogen bonding between the protonated dimethylamino group and the oxygen of the imidazolidinone ring. The spatial relationship between the amine nitrogen and phenyl ring in this conformation allows proper fit of imidoline with key dimensions described for the dopamine receptor.

Furosemide is a non-antibiotic bacterial urease inhibitor that can be used in the control of H. pylori-associated gastroduodenal disease.

Norcodeine is the N-demethylated derivative of codeine. It has relatively little opioid activity in its own right, but is formed as a metabolite of codeine following ingestion. Codeine and its other major metabolites codeine-6-glucuronide and norcodeine have weak affinity to opioid μ-receptors.

Cintriamide is a tranquilizer. It possessed anxiolytic properties. 3,4,5-Trimethoxybenzaldehyde can be used as an intermediate in the synthesis of cintriamide.