Boehringer Ingelheim Animal Health has announced that it has ceased production of the flukicide product Trodax 34% w/v Solution for Injection, containing nitroxynil, for the European market.

Trodax is used to treat the mature and late-immature stages of the liver fluke Fasciola hepatica in both cattle and sheep. It is also indicated for the treatment of Haemonchus contortus infections.

Findlay MacBean, Business Head for Ruminant, at Boehringer Ingelheim Animal Health said: “Manufacturing problems have led to Trodax being out of stock since late 2020 and it is with regret that we have to confirm that we are no longer able to manufacture the product.

"As one of the largest animal health businesses in the world we are committed to improving the lives and health of animals. We have a strong research and development focus, and a pipeline of potential products, including antiparasitics. We recognise that the discontinuation of Trodax may pose challenges for cattle and sheep producers where resistance to other flukicides has been confirmed.

“Our technical services team are on hand to support veterinary practice and animal health merchant customers as we make this change to our portfolio. Customers who have a technical enquiry should call 01344 746957 or email”

Boehringer says that its other wormer and flukicide brands are not affected and that Ivomec Super Injection, which contains ivermectin and clorsulon, provides an alternative treatment option for adult liver fluke in cattle and is also effective against gastrointestinal worm species, lungworm, and key external parasites.

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