Chaulmosulfone is cyclopentanetridecananilide derivative with potent antifungal activity.

Nifurvidine, a 5-nitrofuran derivative, is an antibacterial agent. It was used for controlling Salmonella choleraesuis in swine. The mode of action of 5-nitrofuran analogues is based on red-ox biotransformation.

Niclofolan (bayer 9015, Bilevon) is a biphenyl anthelmintic compound. Niclofolan is used orally towards the treatment of Fasciola hepatica infection. Niclofolan therapy achieved elimination of eggs from the feces and normalization of eosinophil counts, liver enzymes and Fasciola titers, suggesting eradication of biliary flukes. Niclofolan has also been used in the treatment of Paragonimus westermani in dogs and cats and P. iloktsuenensis in rats. It was proved that administration of daily dose of 1.0 mg/kg body weight for 3 days or in 2 doses of 2.0 mg/kg body weight by alternate days were evidently effective for the infected dogs, cats and rats with the lung flukes, and toxic manifestations were not found.

Tamethicillin is a basic ester pro-drug of methicillin (MET) which is converted in the body by non-specific esterases to MET. Tamethicillin was used as an antibacterial agent in the veterinary as a useful alternative for the treatment of mastitis in livestock, especially in mastitis due to beta-lactamase-producing Staphylococcus.

Oxetacillin was developed as an antibacterial drug that has never been marketed.

Pexantel is an anthelmintic, which was used to treat filariasis.

Etibendazole (R34803 or methyl [5-(2-(4-fluorophenyl)-1,3-dioxolan-2-yl)-1H-benzimidazole-2-yl] carbamate), a benzimidazole derivative, is a microtubule inhibitor. Etibendazole exerts antihelmintic activity.

Forminitrazole was studied as an antiprotozoal and antitrichomonal agent. Information about the current use of this compound is not available.

Fenbenicillin (phenoxybenzylpenicillin) is an acid-stable, orally active penicillin. Fenbenicillin demonstrated antibacterial activity in patients suffering from streptococcal, pneumococcal, and penicillin-sensitive staphylococcal infections.

IRLOXACIN, a fluorinated quinolone derivative, is an antibacterial agent with proved activity against both gram-positive and gram-negative bacteria.