Rabacfosadine was approved in 2017 under the brand name Tanovea-CA1 for the treatment of canine lymphoma. In addition, this drug has demonstrated effectiveness against non-Hodgkin's lymphoma in dogs, as well as canine cutaneous T-cell lymphoma, and relapsed canine B-cell lymphoma. Rabacfosadine a prodrug, which is hydrolyzed intracellularly to the metabolites, 9-(2-phosphonylmethoxyethyl)-N6-cyclopropyl-2,6-diaminopurine (cPrPMEDAP) and 9-(2-phosphonylmethoxyethyl) guanine (PMEG). PMEG is then converted to its active phosphorylated form, which is a chain-terminating inhibitor of the replicative deoxyribonucleic acid (DNA) polymerases.

Ethyl sulfate is a metabolite of ethanol and a biomarker of recent alcohol consumption that provide objective measures of abstinence.

Ethyl sulfate is a metabolite of ethanol and a biomarker of recent alcohol consumption that provide objective measures of abstinence.

Doconexent (Docosahexaenoic acid, DHA) is an omega-3 fatty acid that is a primary structural component of the human brain, cerebral cortex, skin, and retina. DHA is widely used as a food supplement, and is beleived to support healthy brain development in young childred, prevent cardiovascular disease and cognitive decline during Alzheimer's disease. Most of these claims, however, were not supported by clinical trials. DHA spray is used as a tanner.

CTI-01 (ethyl pyruvate) is an investigational anti-inflammatory agent for the treatment of critical inflammatory conditions. CTI-01 was developed by Critical Therapeutics as a stable prodrug of pyruvate, a potent antioxidant, and a free radical scavenger. The drug showed an anti-inflammatory and tissue protection activity in animal models of pancreatitis, ischemia-reperfusion injury, sepsis, renal injury, and endotoxemia. CTI-01 was investigated in phase 2 clinical trials on patients undergoing cardiac surgery with cardiopulmonary bypass, but despite positive results in animal models, administration of EP does not appear to confer any benefit to cardiac surgical patients undergoing cardiopulmonary bypass. Besides clinical applications, ethyl pyruvate is long used as an additive to pharmaceutical preparations and foods, including candy, beverages, and baked goods. It is generally recognized as safe by the FDA.

Ethylparaben is produced naturally and found in several fruits and insects, where it acts as an antimicrobial agent. Ethylparaben is mainly used as antiseptics in cosmetics, food and medicine (E number E214). It is also can be used as feed preservatives and antiseptic for bacteria. Ethylparaben is readily absorbed from the gastrointestinal tract or through the skin. It is hydrolyzed to p-hydroxybenzoic acid and rapidly excreted in urine without accumulating in the body. Under the Federal Food, Drug, and Cosmetic Act (FD&C Act), cosmetic products and ingredients, other than color additives, do not need FDA approval before they go on the market. Broad concentration ranges reported in each product category in 1981 were < 0.1% and > 0.1% to 1%. Studies show the in vivo estrogenicity of MP and EP at human exposure levels, and indicate that populations exposed to large amounts of MP and EP may have a high burden of estrogenicity-related diseases.

Ethyl cysteinate is derivative of semi-essential proteinogenic amino acid Cysteine. Ethyl cysteinate is widely used in food additive, cosmetic, pharmaceutical area. Ethyl cysteinate is membrane-permeable, readily enters peripheral tissues and the brain, and increases intracellular pools of cysteine in these tissues via a membrane-associated carboxylesterase. The increased availability of cysteine directly alters the redox status of cells and enhances glutathione production. The enhanced biovailability of L-cysteine and L-glutathione would also promote the direct formation of the S-nitrosothiols, L-S-nitrosocysteine and L-S-nitrosoglutathione and the overall S-nitrosylation status of functional proteins in cells.

Etamiphylline is the respiratory stimulant. No information is available about pharmacodynamics of etamiphylline. No human pharmacokinetic data are available. Etamiphylline seems to be a rather weaker bronchodilator than theophylline when administered orally.