Ocaperidone [R 79598] is an equipotent antagonist of central dopamine D2 and serotonin2 receptors being investigated as a potential antipsychotic agent. Ocaperidone is a benzisoxazol piperidine antipsychotic primarily binds and with high affinity to 5-HT2 (serotonin) receptors, alpha1 and alpha 2 adrenergic receptors, dopamine D2 receptors and histamine H1 receptors. Ocaperidone is an antagonist primarily at the 5HT and D2 receptors. A proposed mechanism of action is the central D2 receptor blockade which is common to all neuroleptics that are used to treat positive symptoms of schizophrenia.

Transcainide is a new and very potent analog of lidocaine that has been found effective in the treatment of ventricular arrhythmias. In common with other class I antiarrhythmic drugs its main electrophysiologic effect is a reduction of the upstroke velocity of the action potential (Vmax) suggesting a blockade of the sodium channel. The interaction of transcainide with this receptor is reversible and state-dependent. Transcainide characterized by very slow kinetics of binding and unbinding to the activated "open" Na+ channel. Transcainide had been in phase II clinical trial for the treatment of Arrhythmias. However, this development was discontinued.

Tivirapine, also known as R-86183, is a HIV-1 specific reverse transcriptase inhibitor. It inhibits the replication of HIV-1, but not HIV-2, in a variety of CD4+ T-cell lines and peripheral blood lymphocytes. Whereas an HIV-1 strain containing the Leu-100-->Ile mutation in the RT gene is about 400-fold less susceptible, R86183 still inhibits the replication of an HIV-1 strain containing the Tyr-181-->Cys RT mutation by 50% at a concentration of 130 nM. Tivirapine had been in phase I clinical trial for the treatment of HIV-1 infection. However, this development was discontinued.

Saperconazole, a N-1-substituted triazole antifungal that is a selective inhibitor of the cytochrome P-450-dependent ergosterol synthesis in Candida albicans, Aspergillus fumigatus, and Trichophyton mentagrophytes. Saperconazole participated in a clinical trial for the treatment of mycoses. However, further, development was discontinued because of concerns about the possibility of drug-induced carcinogenesis.

Loperamide Oxide is a prodrug of loperamide, an antidiarrheal agent, patented by Belgian pharmaceutical company Janssen Pharmaceutica N. V. as an antidiarrheal agent. Loperamide oxide is reduced to loperamide and has the same antisecretory potency as loperamide in jejunum and colon. In clinical trials, Loperamide oxide provides a safe and effective treatment for chronic diarrhea associated with Crohn's disease. Loperamide Oxide is used in the Netherlands for the treatment of acute diarrhea in adults under brand name Arestal.

Loperamide Oxide is a prodrug of loperamide, an antidiarrheal agent, patented by Belgian pharmaceutical company Janssen Pharmaceutica N. V. as an antidiarrheal agent. Loperamide oxide is reduced to loperamide and has the same antisecretory potency as loperamide in jejunum and colon. In clinical trials, Loperamide oxide provides a safe and effective treatment for chronic diarrhea associated with Crohn's disease. Loperamide Oxide is used in the Netherlands for the treatment of acute diarrhea in adults under brand name Arestal.