“The continued presence or rapid reappearance of eggs despite repeated treatment was found in mature horses in Germany. Egg shedding ceased only after mebendazole treatment,” Mr Knowles added.

The tests of mebendazole are part of a growing effort to take a fresh look at old medicines to see if they can be repurposed for new uses. I first learned about mebendazole several years back when ...

Mebendazole, sold as a generic drug in the United States, has been used since the 1970s to treat roundworm, hookworm, pinworm, whipworm, and other worm-based parasitic infections.