Why Choose Combantrin? Just as threadworm is easy to catch, it can be treated very easily & effectively with Combantrin. There are several different worming products on the market. So why should you choose Combantrin? Combantrin is Australia's leading worming treatment Combantrin treats threadworm, as well as the rare worms roundworm & hookworm, in a single doseCombantrin suspension may be used by all the family, from 6 months of ageHow Combantrin Works? Combantrin is effective against threadworm as well as the rare worms roundworm & hookworm, in a single dose. It contains pyrantel embonate, which works as a "neuro-muscular blocking agent" - effectively paralysing worms. Unable to move, worms are passed out in the faeces.All human worming products will treat only adult worms present in the intestine at the time of taking the medication. They will not treat the eggs or immature worms & will not protect you or your children from contracting threadworm if you are exposed to it again. So it's advisable to check roughly 2 weeks after the initial dose to ensure a second dose is not required.