Pozanicline is an alpha4-beta2 neuronal nicotinic receptor partial agonist. It had been in phase II clinical trials for the treatment of attention hyperactivity disorder and Alzheimer’s disease. It was tested for the treatment of schizophrenia too. All these studies were discontinued. Modulation of hippocampal learning and memory using Pozanicline in animal model was effective as novel therapeutic strategies for nicotine addiction. However future clinical trial was terminated.

Tropabazate is a narcosis potentiator, tranquilliser.

Efaroxan (RX 821037) is a potent and selective alpha(2)-adrenoceptor antagonist. Additionally, Efaroxan is a selective antagonist at the imidazoline I1 receptor. Efaroxan promotes insulin secretion, in the absence of exogenous agonists, by a mechanism that involves inhibition of ATP-regulated K+ channels. Efaroxan was in clinical trials for the treatment of diabetes mellitus however its development has been discontinued.

FENFLUTHRIN, a synthetic pyrethroid, is an obsolete insecticide that was used to control a variety of insect pests in food stores and for public hygiene purposes.

Ursulcholic acid is a soluble form of ursodeoxycholic acid. It is an anticholinergic agent.

Revatropate is a muscarinic antagonist with selectivity for M1 and M3 receptor subtypes. Significant improvement in airway function was shown in horses with heaves after inhalation of revatropate, and it was found to be a safe and effective bronchodilator. Early clinical studies in chronic obstructive airway disease (COAD) patients also showed that inhaled revatropate was an effective bronchodilator, and well tolerated.

Fostedil (KB-944) is a phosphonic acid derivative with potent vasodilator activity. KB-944 has been demonstrated to produce long lasting coronary vasodilator and hypotensive effects in conscious and anesthetized dogs; increase coronary blood flow in isolated, blood perfused heart preparations of dogs; and reduce systemic pressure in conscious normotensive and hypertensive rats. Slow channel calcium entry blockade is thought to contribute to the vasodilator activity of KB-944. Fostedil is longer acting in hypertensive animals than either nifedipine or diltiazem suggesting a potential clinical advantage for this compound. Unexpectedly, fostedil was shown to produce atrial fibrillation in 3 of 10 hypertensive patients in a placebo controlled study. Fostedil had been in phase II clinical trials for the treatment of angina pectoris. However, this research has been discontinued.

LEMINOPRAZOLE is an inhibitor of the gastric mucosal proton pump. Its development for the treatment of peptic ulcer was discontinued.