Scopinast (previously known as KA 398) was studied for the treatment of asthma and allergic seasonal. However, the further development of the drug was discontinued.

Bolenol is a synthetic anabolic steroid that was never marketed.

Terbuprol was developed as a choleretic agent that has never been marketed. Information about the current use of this drug is not available.

Primycin is a topical antibiotic developed in Hungary for the local treatment of certain superficial and deep infections of the skin and subcutaneous tissue. Primycin is a complex of macrocyclic antibiotics comprising 20 compounds. Primycin possesses good in vitro activity against Staphylococcus aureus and coagulase-negative staphylococci, but its activity against Sirepiococctts pyogenes and enterococci is moderate. It is active against Micrococcus and Bacillus spp. but is inactive against Corynebacterium spp. It is inactive against Enterofojcterwceae and Pseudomonas aeruginosa, yeasts, and dermatophytes. The median lethal dose in the mouse is greater than 3,000 mg/kg of body weight orally and 56 mg/kg intraperitoneally. No skin lesions have been observed after chronic cutaneous applications (90 days) in the rabbit.

Cromakalim is an ATP-sensitive potassium (KATP) channel opener, which was studied for the treatment of gastric ulcer, hypertension and preventing a cardiomyopathy. But the development of this drug was discontinued due to heart lesions found in monkey chronic toxicity studies.

Lozilurea (N' -3-chlorobenzyl-N'-ethylurea, ITA 312) has shown marked anti-ulcer activity. It has shown itself to be active against chemically and neurogenically induced gastric and duodenal lesions in various experimental animal models. It has no major anti-secretory action. The experimental data obtained suggest that the mechanism of action of lozilurea consists in increasing the protective function of the mucus barrier. It increased gastric levels of hexosamines and mucoproteins. In the screening trials carried out in order to detect the side effects of lozilurea, it has shown sedative, antipyretic and vasodilatory actions.

Delorazepam is a benzodiazepine with anxiolytic effects. It is a metabolite of the designer drug diclazepam that can be detected in either the serum or urine. Delorazepam can also be produced by enzymatic treatment of lorazepam with β-glucuronidase. It is indicated for the treatment of anxiety, tension and other somatic or psychiatric manifestations associated with anxiety syndrome, insomnia. The side effects and precautions for use of delorazepam are the same as for all benzodiazepines, in particular as regards the development of dependence (mental and physical) and tolerance. Prolonged use may lead to difficulties remembering recent names and events (anterograde amnesia). It has been approved for marketing in Italy.

Metazide (RO 2-4969), a isonicotinic acid hydrazide derivative, is a tuberculostatic agent. Metazid causes damage to the membrane of Mycobacterium tuberculosis, inhibits metabolic and oxidative processes, inhibits the synthesis of nucleic acids, inhibiting the proliferation of bacteria inside and outside the cell. It has been used in the treatment of all forms and localizations of active tuberculosis in adults and children

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.

Tipindole is serotonin antagonist. It is a monamine oxidase inhibitor. Diarrhea that arises in mice given serotonin intravenously is not suppressed by tipindole. Tipindole exerts no effect on the serotonin-induced contraction and relaxation of the bladder detrusor. Tipindole depresses reflexes from pericardial receptors considerably more than reflexes from carotid sinus receptors. Tipindole blocks chemoreceptors but has no effect on mechanoreceptors – it did not modify impulses produced by mechanoreceptors.