Ah OK. That was my reply to your question asking about flubendazole. Looking again at wormer plus it says it kills 'helminths' and helminth is a collective term for flatworms, round worms and flukes.
Many years ago my fish were infected with camallanus worms. I researched on line and came up with flubendazole, fenbendazole and levamisole as medications to use. Some sites recommended one, some another. The only one of those I could find was flubendazole, as Kusuri Wormer Plus. I followed the instructions to the letter but it didn't get rid of them. What did get rid of them was Sera Nematol, which doesn't contain any of those medications. Since then, eSHa have brought out ndx which I would have used had it been available.