Mepiprazole is a psychotropic pyrazole derivative. Mepiprazole is a serotonin reuptake inhibitor and adrenolytic. In clinical studies, it demonstrated anxiolytic properties.

Baquiloprim, a drug that was used in veterinary medicine, e.g. in combination with sulphadimidine for the treatment of diarrhea in calves. However, the drug has vanished from the use mainly for commercial reason.

Detrothyronine is the (R)-(D)-form of triiodothyronine and has antihyperlipidaemic actions with beneficial effects upon coronary disease and hypertension. Detrothyronine has been tried in the treatment of hypercholesterolemia but its toxic effects outweigh any therapeutic advantage.

Carocainide is a benzofuran derivative patented by pharmaceutical company Delalande S. A. For treatment cardiovascular disease. Carocainide showing antiarrhythmic properties in animal models. In isolated papillary muscles and Purkinje fibers it decreases the maximum rate of rise of the action potential and in Purkinje fibers it decreases the plateau amplitude and the duration of the action potential. Carocainide increases the ratio of the effective refractory period to the action potential duration at 90% of repolarization, shifts the membrane responsiveness curve towards more negative membrane potentials and slows down the recovery of the maximum rate of rise of the action potentials of the Purkinje fibers. Carocainide also increases the conduction time at the Purkinje papillary muscle junction.

Cetefloxacin is an oral fluoroquinolone derivative with potent antibacterial activity against a broad spectrum of microorganisms being particularly active against gram-positive bacteria. Cetefloxacin is highly toxic and mortality was recorded among rats receiving 2000 or 1000 mg/kg/d. Rats receiving dosages of 450 or 2000/1000 mg/kg/d showed less activated mandibular lymph nodes, cortical lymphocyte depletion of mandibular and/or mesenteric lymph nodes, atrophy of the white pulp of the spleen, cortical atrophy of thymus and thymic apoptosis. Enlarged caeca, increased water consumption and variations in plasma electrolyte levels were observed in animals receiving these dosages and in male rats receiving 100 mg/kg/d. Low neutrophil counts were observed in rats receiving dosages of 100 or 450 mg/kg/d, and increased alkaline phosphatase and alanine transaminase plasma levels and slightly decreased plasma protein levels in females receiving 450 or 2000/1000 mg/kg/d. Marmosets receiving dosages of 50 mg/kg/d and above displayed several clinical signs which included emesis, diarrhoea, ptosis, occasional episodes of under- and overactivity, and excessive scratching activity. Skin reddening was observed during the first week of treatment in marmosets receiving 300 mg/kg/d.

FEPROSIDNINE, also known as Sidnofen, is a psychostimulant and monoamine oxidase inhibitor developed in USSR.

Dersalazine is a locally-acting compound. It is a potent platelet activating factor (PAF)-antagonist. Dersalazine inhibited IL-1beta or TNF-alpha production in THP-1 or U937 cells, respectively. Dersalazine sodium reduced colonic proinflammatory cytokines IL-1b, IL-6, and IL-17 in dextran sodium sulphate (DSS)–induced colitis. After oral administration, dersalazine sodium is mostly unabsorbed until it reaches the large bowel where the azo bond is reduced by bacteria releasing the active compound. Dersalazine had been in phase I clinical trial for the treatment of ulcerative colitis. No serious adverse reactions were detected in clinical trial. However, no recent development has been reported.

Bromerguride is an ergot derivative with dopamine antagonistic activity. Bromerguride has been claimed to bind to 5-HT1A receptors and to have 5-HT agonist properties. The neuropharmacological effects caused by the drug in animals were characterized by a central depressant neuroleptic-like symptomatology; the neuroleptic activity of the Bromerguride being at least in the same order of magnitude as haloperidol.

Brocrinat is an ethacrynic acid derivative with diuretic activity. Chronic dosing with Brocrinat does not increase plasma uric acid suggests that therapeutically, Brocrinat as a diuretic may be useful in patients where control of plasma uric acid is desirable..

KETIPRAMINE, an imipramine derivative, is a tricyclic antidepressant. In clinical trials, it was found to be as effective as imipramine for the depression treatment, with fewer secondary effects.