Butaclamol is an antipsychotic drug, which was studied for the treatment of schizophrenia. This drug has never marketed and now is used in research, because of its action as a dopamine receptor-blocking agent. Butaclamol consists of the two forms: (-)-butaclamol, an inactive drug and (+)-butaclamol, a potent neuroleptic drug.

Serazapine (CGS15040) is an anxiolytic agent. It is structurally novel 5-HT2 receptor antagonist. Preliminary preclinical findings indicated an anticonflict effect in a behavioral suppression test, and two preliminary investigations in volunteers also suggested anxiolytic potential. In the first of these studies serazapine resembled diazepam, a reference anxiolytic drug, electroencephalographically. Additionally, in a test of psychogenic stress in volunteers it reduced cardiac output.

Dexclamol is a sedative agent. It was found to potentiate the anesthetic actions of halothane. In potentiating the effects of halothane, dexclamol behaved both qualitatively and quantitatively in a manner similar to droperidol. Dexclamol, however, was approximately 37 times less potent than droperidol in antagonizing the vasopressor effects of epinephrine. The neuroleptic agent (+)-dexclamol, but not (-)-dexclamol, affects central dopamine (DA) and norepinephrine (NE) turnover and indicates a stereochemical specificity with respect to antagonism of central DA and NE receptors. Dexclamol was as effective as droperidol at the same dose in inducing neurolepsy and in supplementing nitrous oxide anaesthesia. Changes in heart rate, respiratory rate and rectal temperature in the animals treated with dexclamol were not different from those observed in the animals treated with droperidol.

Megalomicin is a Micromonospora-produced macrolide antibiotic complex. Megalomicin A component was studied most extensively. It inhibited the ATP-dependent acidification of lysosomes and intra-Golgi transport in vitro. Megalomicin induces a powerful inhibitory effect on HIV-1 replication at nontoxic concentrations by preventing the processing of HIV-1 gp160 envelope protein and the subsequent formation of infectious viral particles.

Teroxalene is a dioxopiperazine derivative with multidrug resistance reversal activity

Prodilidine is an arylpyrrolidine derivative patented by Mead Johnson & Co.as moderately potent analgesic. By comparison with other drugs, including morphine, Prodilidine has a prompt and unusually sustained antinociceptive action in rodents by all routes. Prodilidine substantially lacks antipyretic, anti-inflammatory, antitussive, constipating, respiratory depressant, and cardiovascular effects. Prodilidine resembles meperidine in excitatory properties and body-temperature lowering action at high dosage. The d-isomer is about twice as potent and toxic as the l-isomer parenterally; by the gastric route, the difference is markedly less.

Crisnatol is a derivative of arylmethylaminopropanediol with significant antineoplastic activity in a variety of murine and human tumor models. Crisnatol functions as a DNA intercalator, with the presence of additional basic amine groups in the sidechain enhancing binding to DNA due to electrostatic interactions. Crisnatol did not show antitumor efficacy in patients with ovarian carcinoma. In another clinical study, 2 of 26 patients with glioma showed complete long-lasting responses to the drug. The dose-limiting side effect was neurotoxicity.

Taclamine is an isoquinoline derivative patented by Ayerst, McKenna and Harrison Ltd. as central nervous system depressant and anti-inflammatory agent. In preclinical models, Taclamine antagonizes the turnover of noradrenaline and dopamine in the rat brain during immobilization stress without effects on brain serotonin turnover