Dexamisole is the dextro-isomer of tetramisole, a broad spectrum anthelmintic. Dexamisole significantly improves mood and psychotonicity. In adrenergically innervated blood vessels dexamisole inhibits neuronal uptake of norepinephrine more than levamisole. Dexamisole antagonized the reserpine-induced hypothermia but was ineffective in the apomorphine-induced hypothermia in mice. It reduced ptosis produced by reserpine in mice but this effect was very weak. The effect of dexamisole on the amphetamine-induced hyperactivity depended upon the animal species. Dexamisole reduced the duration of immobility in the despair test in rats. It did not modify the 5-HTP-induced head twitch reaction in mice but produced stimulation of the hind limb flexor reflex in spinal rats. The latter effect was blocked by phenoxybenzamine but not by cyproheptadine and metergoline. Dexamisole also exerted a sedative and hypothermic effect. The above findings indicate that the pharmacological profile of dexamisole resembles in some respects that of tricyclic antidepressants; they also point out that this drug has a central noradrenergic activity.

Moxnidazole is an antiparasitic drug suitable for oral use against parasites in farm animals. administration of Moxnidazole in the drinking water gave good prophylaxis of dysentery in swine, histomoniasis in hens and turkeys, and trichomoniasis in pigeons. Isolated relapses were due to renfections and were successfully treated by another dose of the drug.

Tiazuril is a triazinedione derivative patented by American multinational pharmaceutical corporation Pfizer Inc. as the coccidiostatic agent. Tiazuril controlled all the major species of poultry coccidia at low concentrations but elicited toxicological symptoms suggesting interference with nucleic acid synthesis.

Enpiroline (WR 180,409) is an antimalarial compound. It demonstrates activity against Plasmodium falciparum both in vitro and in non-immune infected subjects. Additionally, it exerts antischistosomal activity.

Luxabendazole is a benzimidazole carbamate antihelmintic agent. In animal studies, it was effective against adult and immature stages of the major gastrointestinal nematodes, trematodes and cestodes.

Bithionol sulfoxide is an effective cestocide, and also used as a fasciolicide, usually in combination with other compounds because of its poor efficiency against immature flukes. It has also demonstrated efficacy in vitro as an antiprotozoal agent effective against species causing amoebic gill disease in fish. It has been used for veterinary applications but has more recently been superseded by modern anthelmintic drugs.

Bisbendazole was developed as an anthelmintic agent.

Netobimin is a carbamate compound which is used as an anthelmintic drug in veterinarymedicine. Netobimin-containing products are available as liquid suspensions which are intendedfor oral administration. Products are available for sheep and cattle. An oral dose of 7.5 mg/kg bw is recommended for the treatment of gastrointestinal infestations of roundworms and tapeworms;and 20 mg/kg bw is recommended for type II ostertagiasis and adult flukes. In order to be pharmacologically active, netobimin needs to be converted to the broad spectrumanthelmintic drug albendazole, by the splitting off of a side-chain and the formation of abenzimidazole group. This occurs naturally in the ruminant gut.

Sulazuril (also known as Hoe 092 V) is a phenyltriazolone derivative patented by Hoechst A.-G. as agrochemical protozoacide. Sulazuril is effective against a broad spectrum of fish and crustacean parasites.

Parvaquone, an antitheilerial compound that was developed for the treatment of East Coast fever. Experiments on animals have shown that this drug was effective in the treatment of cattle infected with Theileria annulata.