it comes in packets, he uses the four gram packets, I don't know if that's because of the dosage per dog size or what, I just follwed what he did, it's the orange box. I think. I threw my packaging away. It's safer than metronodazole that has to be administered by a vet. Of you worm one, worm them all, eggs are going to be in your viv, so just keep worming, atleast for 3 months. If you're worried, use smaller crickets= smaller dosage. I've heard of frogs getting lung worm, and even with vet treatment it's hard to catch, the cycle on those is very particular.