Ciprokinen is a renin inhibitor discovered by Roche. Ciprokinen inhibited human renin in a buffer and human plasma with an IC50 of 0.07 and 0.65 nmol/L, respectively. In animal models, acute and chronic administration of ciprokinen lead to a reduction in arterial blood pressure. Development of ciprokinen was discontinued at a preclinical stage.

Idoxifene (also known as CB 7432), a novel selective estrogen receptor modulator, is originally discovered at the CRC Centre for Cancer Therapeutics, Institute. This drug participated in clinical trials phase II in patients with locally advanced/metastatic breast cancer resistant to tamoxifen. In addition, in phase III in postmenopausal women after one year of idoxifene treatment. However, both studies were discontinued because of insufficient effectiveness.

Elomotecan (BN 80927), a homocamptothecin derivative, inhibits both topoisomerase I and topoisomerase II mediated DNA relaxation. It potently inhibits proliferation of human tumor cells in vitro and in vivo. Elomotecan was being developed for the treatment of solid tumors.

Etaminile is an antitussive agent.

Clodoxopone (LR 19731) is a hypoglycemic agent, developed in the 1980s by Italian company Lusofarmaco. In animal models, the drug lowered the plasma cholesterol and triglyceride levels in several experimental conditions after single or repeated treatments. Results of the clinical trials of the drug are not reported.

Farglitazar is a non-thiazolidinedione insulin sensitizer and agonist of peroxisome proliferator-activated receptor-gamma. GlaxoSmithKline was developing farglitazar for the treatment of liver fibrosis and Type 2 diabetes mellitus.

Amicibone is an antitussive agent.

Dextofisopam, a non-serotonergic agent currently being evaluated for the treatment of irritable bowel syndrome (IBS), is the R-enantiomer of racemic tofisopam, a molecule marketed and used safely outside the United States for over three decades for multiple indications including IBS. Dextofisopam represents a novel, first-in-class opportunity with a positive proof-of-concept study in an arena where there are few compounds with unique approaches or positive efficacy results. By structure, Dextofisopam is a member of the homophthalazine class; Dextofisopam binds to specific receptors in areas of the brain affecting autonomic function, including gastrointestinal (GI) function. Unlike the two 5-HT3 or 5-HT4 mediated IBS therapies currently available, both with significant safety concerns, Dextofisopam novel non-serotonergic activity offers a unique and innovative approach to IBS treatment. Recent studies have indicated that dextofisopam binds to a novel binding site within the central nervous system that may be responsible for mediating its actions. This receptor has been characterized as the 2,3-benzodiazepine receptor, which is distinct from the classical 1,4 or 1,5-benzodiazepine receptor. Dextofisopam has no significant binding at other receptors or ion channels

Edotecarin (J-107088 or [6-N-(1-hydroxymethyl-2-hydroxy)ethylamino-12,13-dihydro-2,10-dihydroxy- 13-(beta-D-glucopyranosyl)-5H-indolo[2,3-a]-pyrrolo[3,4-c]-carb azo le-5,7(6H)-dione]) is a DNA topoisomerase I inhibitor. The antitumor activity of edotecarin has been tested in vitro and in vivo, and inhibition of tumor growth has been observed in breast, cervix, pharynx, lung, prostate, colon, gastric, and hepatic cancer models. Banyu Pharmaceutical Co Ltd and Pfizer Inc were developing edotecarin for the potential treatment of solid tumors. Edotecarin development has been discontinued.

Impromidine is a highly potent and specific histamine H2 receptor agonist used diagnostically as a gastric secretion indicator. The value of impromidine as an effective acid-secretory stimulant is limited by its tendency to cause cardiovascular side-effects, that mediated by H2-receptors in the cardiovascular system.