Netazepide (YF476) is an orally active, benzodiazepine type, selective cholecystokinin B receptor (CCKBR; CCK2R; gastrin receptor) antagonist with potential gastric acid reducing and antiproliferative activity. Upon administration, netazepide, selectively binds to and blocks the CCKBR, thereby preventing the binding of gastrin and cholecystokinin. This may prevent gastric neuroendocrine enterochromaffin-like (ECL) cell-induced secretion of histamine, ultimately preventing gastric acid secretion from adjacent parietal cells. In addition, YF476 may inhibit ECL cell proliferation and ECL-derived gastric carcinoids. Netazepide has been used in trials studying the prevention and treatment of dyspepsia, hypergastrinaemia, barrett's esophagus, ECL-cell hyperplasia, and rebound hyperacidity, among others. Netazepide once daily for 12 weeks reduced the number of tumours and size of the largest one in 16 patients with autoimmune chronic atrophic gastritis (CAG), achlorhydria, hypergastrinaemia and multiple gastric neuroendocrine tumours (type 1 gastric NETs), and normalized circulating chromogranin A (CgA) produced by enterochromaffin-like cells, the source of the tumours.

Etamicastat (BIA 5453) is a peripherally selective chromanyl imidazolethione-based inhibitor of dopamine beta-hydroxylase, the enzyme that catalyzes the conversion of dopamine to noradrenaline in the sympathetic nerves. Prolonged downregulation of sympathetic drive with etamicastat results in a sustained decrease in the systolic blood pressure and the diastolic blood pressure. Etamicastat was being studied by BIAL for the oral treatment of hypertension and congestive heart failure. Etamicastat development has been discontinued.

Apadenoson (BMS-068645) is a selective adenosine 2A agonist that contains a methyl ester group which undergoes esterase hydrolysis to its acid metabolite. Apadenoson had been in phase III clinical trials by Forest (now a part of Allergan) for the treatment of coronary artery disease. However, this study has been terminated.

Azarole is an immunoregulator and antibacterial agent.

Piridicillin is the semi-synthetic penicillin. It has exhibited broad-spectrum activity in vitro against gram-positive cocci, except penicillin G-resistant Staphylococcus aureus, and against gram-negative bacilli. Piridicillin is reported to be more active in-vitro than piperacillin, azlocillin or ticarcillin against Ps. aeruginosa. It is unstable at alkaline pH and displays marked inoculum independence.

Ronacaleret (SB-751689-A) is a calcium-sensing receptor antagonist. This orally administered compound has been evaluated as a drug for treatment of postmenopausal osteoporosis. By antagonizing calcium-sensing receptors on the surface of the parathyroid gland, ronacaleret triggers a transient release of the body's own stores of parathyroid hormone. In patients with osteoporosis, this may increase volumetric bone mineral. In a phase II clinical trial, bone mineral density at the lumbar spine increased. Cardiac disorders (2.3% of patients) and gastrointestinal disorders (>60% of patients) were reported as adverse events. Phase I studies have also been conducted to evaluate the impact of ronacaleret on mobilization of Hematopoietic stem cells (HSCs) and to measure changes in CD34+ cell counts.

Nicotredole (Tryptamide), similarly to ibuprofen and piroxicam, shows anti-inflammatory and analgesic properties. Tryptamide reversed pyrogen-induced hyperthermia in rats, elicited analgesic effects in rats, but not in mice, prolonged the time of hexobarbital sleep in rats and inhibited locomotor activity in rats and mice. Tryptamide has not elicited side effects on the circulatory system of rats and cats.

Hydroxytamoxifen (Afimoxifene) is an active metabolite of tamoxifen exerting estrogen receptor modulatory function. In addition, hydroxytamoxifen binds to regulates transcriptional activity of the estrogen-related receptor gamma. ASCEND Therapeutics, Inc. was developing TamoGel (4-hydroxytamoxifen gel) for a variety of estrogen-dependent conditions, including breast cancer, cyclic breast pain and gynecomastia.

Emopamil is a phenylalkylamine calcium antagonist. Emopamil has optically active stereoisomers. Emopamil enhanced the postischemic restoration of high-energy phosphate levels. The racemic mixture and the (-)-enantiomer of emopamil caused similar metabolic changes while (+)-enantiomer of emopamil proved to be ineffective. Emopamil is able to reverse multi-drug resistance in human KB cell lines. No differences in reversing potency were observed between emopamil (R)-isomers, (L)-isomers and the racemic form. There is a pharmacological relationship between sigma1-binding site and the mammalian sterol C8-C7 isomerase which is identical with the emopamil binding protein.