Tetronasin is a furanone derivative patented by Imperial Chemical Industries Ltd. as antibiotic and feed additive for ruminants. Tetronasin acts as divalent antiporter that binds preferentially with Ca2+ or Mg2+ and inhibits anaerobic fungi and Gram-negative bacteria in vitro.

FLUBANILATE is a CNS stimulant.

Clorgiline is a monoamine oxidase (MAO) inhibitor. Specifically, it is an irreversible and selective inhibitor of MAO-A. Clorgiline was under investigation for antidepressant and anxiolytic potential but has never been marketed, likely due to efficacy concerns. It continues to see routine use as a molecular probe in biomedical research examining a number of neurological disease and cancer models. In addition to inhibiting the MAO-A receptor, it has also been found to bind to the sigma1 receptor, and with high affinity to the I2 imidazoline receptor.

Nitramisole, an imidazothiazole derivative, is an anthelmintic. Nitramisole was effective against migrating Strongylus vulgaris larvae in ponies. Treatment of infected ponies with Nitramisole resulted both a clinical and radical cure.

Ciprefadol is an opioid analgesic drug. It binds with a high affinity to mu (Ki 4.2 nM) and kappa (Ki 2.5 nM) opioid receptors. In vivo, ciprefadol displays mixed antagonist/agonist activity in the mouse writhing and the rat tail heat tests: in low doses, the compound inhibits the analgesic effect of morphine, while at higher doses it displays analgesic effect. Chronic administration of ciprefadol to rhesus monkeys produced a marked physical dependence more severe than that of morphine, and its effect was consistent with what would be expected of a potent, long-lasting morphine-like agonist.

ISOMETAMIDIUM (as a chloride salt) is widely used in tropical countries as an antiprotozoal agent to control animal trypanosomiasis. It is used principally in cattle but also in sheep, goats, buffalos, donkeys, horses, camels and dogs.

Cyprenorphine is a mixed agonist-antagonist of opioid receptors. In clinical trials, administration of cyprenorphine induced psychotomimetic effects in pre-operative patients.

Liarozole is an imidazole-containing compound that inhibits the cytochrome P-450-dependent metabolism of all-trans-retinoic acid (RA). Liarozole, a retinoic acid (RA) metabolism-blocking agent (RAMBA) in clinical development, has been granted orphan drug designation for congenital ichthyosis by the European Commission and the U.S. Food and Drug Administration. Later, based on the mixed results from a phase II/III trial of liarozole for the treatment of ichthyosis, Barrier decided to discontinue the development of liarozole. Liarozole displays antitumor activity against androgen-dependent and independent rat prostate carcinomas.A large phase III international study was completed comparing liarozole 300 mg twice daily with cyproterone acetate (CPA) 100 mg twice daily in a total of 321 patients with metastatic prostate cancer in relapse after first-line endocrine therapy. The results indicate that liarozole might be a possible treatment option for prostate cancer (PCA) following failure of first-line endocrine therapy.

Alvameline is a partial agonist of the M1 mAChR that also displays M2/M3 antagonist effects. It readily crosses the blood-brain barrier. It has an effect profile that makes it of interest to test its ability to counteract bladder overactivity in humans. Behaviorally, alvameline has been shown to significantly improve Morris water maze (MWM) performance in both young and ageimpaired rats. It failed to improve cognition in patients with mild to moderate Alzheimer's disease.

Early explorations of spider and scorpion venoms provided clues for the discovery of new classes of compounds, including delucemine, that act as neuroprotectants in animal models of stroke. This compound targets open NMDA receptor-operated calcium channels and blocks the channel. By blocking these channels, which open in response to the neurotransmitter glutamate, delucemine prevents excessive calcium influx during ischemia. This stabilizes cell chemistry and minimizes cell death. Delucemine attenuated short-term cognitive deficits and histopathological changes associated with traumatic brain injury. Delucemine improved measures of brain tissue edema and ion homeostasis.