The drugs include nicarbazin, known to cause birth defects and hormonal problems in animals, and lasalocid, linked to heart problems. A third drug, dimetridazole (DMZ), has never been properly ...

The ionophores approved for use in cattle include monensin (Rumensin®), lasalocid (Bovatec®) and laidlomycin propionate (Cattlyst®). Although all ionophores can be toxic, this article will focus on ...