<unk>  is an anthelmintic, a veterinary medicine against parasitic worms in sheep and cattle. The substance is active against the liver fluke the Fasciola hepatica and to a lesser extent against thread worms in the gastrointestinal tract. Brand names include Fluconix, Dovenix and Trodax.<unk>  is also used against strains of the red gum worm (Haemonchus contortus) that have become resistant to benzimidazoles.<unk>  was invented by May & Baker in the mid 1960s as part of a program into investigation of derivatives of p-hydroxybenzonitrile. In addition to<unk> , the herbicides ioxynil (3,5-diiodo) and bromoxynil (3,5-dibromo) were also invented by the same company.<unk>  has a nitro group in addition to a single iodine group.<unk>  is almost insoluble in water. It is usually injected subcutaneously into the animals in the form of the water-soluble ethylglucamine salt. It must not be administered to animals that produce milk for human consumption.
Nitroxinil
Bosentan
Enalapril
Macitentan
Nafoxidine
Nitroglycerin 
Trandolapril
Ambrisentan