Benzyldimethyl(2-(2-((4-(1,1,3,3-Tetramethylbutyl)-O-Tolyl)Oxy)Ethoxy)Ethyl)Ammonium colloquially known as Methylbenzethonium Chloride has been used in the study stem cell death-inducing small molecules as well as anti-leishmanial activity. It is a component of the pharmaceutical preparation 'Leshctan' antibacterial ointment in Isreal.

Emepronium bromide (Cetiprina) is a quarternary ammonium compound with anticholinergic effects. It is mainly used in the treatment of urinary frequency, urge and urge incontinence and is usually administered orally and occasionally intramuscularly. Emepronium bromide was introduced into Britain, after having been used in Sweden for a number of years. The drug was advocated especially for elderly patients suffering from nocturia and urgency with incontinence, when these were due to causes other than obstruction. It was also advocated for enuresis and hypertonic bladder states following surgery or radiotherapy.

Ketanserin is a selective 5HT2A receptor antagonist which was initially developed as an anti-hypertensive medicine. However, now the drug is available as a topical gel formulation for the treatment of wounds, burns, ulcers and anal fissure (Sufrexal brand name). The drug action is explained by its ability to accelerate epithelialization.

Bromopride is a dopamine D2 receptor blocker. Bromopride exerts is a gastrointestinal prokinetic exploited clinically for the management of motor disorders of the upper gastrointestinal tract, including functional dyspepsia, gastric stasis of various origins and emesis.

Aprofene (widely known as aprophen or Апрофен (in Russia)), a Soviet drug, is an antagonist of muscarinic and nicotinic acetylcholine receptors. It had been used in Russia for the treatment of endarteritis (inflammation of the inner shell of the artery), peptic ulcer of the stomach and duodenum, spastic colitis (inflammation of the colon characterized by sharp contractions), cholecystitis (inflammation of the gallbladder) until was included in the list of psychotropic substances.

Butetamate is a cough suppressant. It exerts antispasmodic, bronchodilator and anticholinergic properties.

Etiroxate is a synthetic thyroxine derivative. It was used for the treatment of patients with hyperlipoproteinaemia. There were only slight side effects, such as gastric and autonomic nervous system symptoms. No statistically significant increase in anginal symptoms was found, even in patients with known coronary insufficiency. No negative effects on hepatic and renal function or the peripheral blood count were observed. Etiroxate caused a significant reduction in serum cholesterol, LDL-cholesterol, and serum apolipoprotein B. There was a significant decrease in HDL-cholesterol. Etiroxate might be used for the treatment and prevention of atherosclerotic disease.

Butoxamine is a selective antagonist of the beta2 adrenergic receptor. It was discovered in laboratories of Farbwerke Hoechst. Administration of 25-50 mg subcutaneously or 50-150 mg orally induced mescaline syndrome, disorders of consciousness and a psychotic episode with amnesia. At an oral dose of 5 mg, butoxamine inhibited metabolic changes induced by fasting and administration of catecholamines. Butoxamine was not developed further and is mainly used in biomedical research to study the functional role of beta2 receptors.

Oxeladin citrate is a cough suppressant, is a highly potent and effective drug used to treat all types of cough of various etiologies. Withdrawn from the Canadian, US, and UK markets in 1976 due to carcinogenicity. Oxeladine is a component of antitussive drug, Altussan, approved in Philippines.

Cyclobutyrol (CB) is a choleretic agent, which also inhibits biliary lipid secretion. Administration of cyclobutyrol reduced biliary concentration and output of cholesterol and phospholipid. This is due to an uncoupling of the secretion of cholesterol and phospholipids from that of bile acids. Biliary outputs of the canalicular membrane enzymes 5'-nucleotidase and alkaline phosphodiesterase I are depressed. The most likely effect of CB is exerted at the level of the canalicular membrane.