All three?
try...
Milbemax covers-
Dipylidium caninum, Taenia spp., Echinococcus multilocularis,Toxocara cati, Ancylostoma tubaeforme, Dirofilaria immitis, Dipylidium caninum, Mesocestoides spp, Toxocara canis, Toxascaris leonina, Ancylostoma caninum, Trichuris vulpis, Crenosoma vulpis, Angiostrongylus vasorum.


Drontal covers-
Toxocara cati, Toxascaris leonina, Dipylidium caninum, Taenia taeniaeformis
Toxocara canis, Toxascaris leonina, Uncinaria stenocephala, Ancylostoma caninum, Trichuris vulpis, Echinococcus species, Taenia species, Dipylidium caninum

Profender covers-
Toxocara cati, Toxascaris leonina, Ancylostoma tubaeforme, Dipylidium caninum, Taenia taeniaeformis, and Echinococcus multilocularis


some of those are different types of the same species of tapeworm and roundworm. the others are whipworm, heartworm, lungworm, hookworm, giardia and a few other nasties that aren't worms but can cause a whole hell of a lot of problems.


I wonder how many species Johnson's and Bob Martin kills... and I wonder how they work out their dosing... hmm