Lucky Bamboo, Dracaena sanderiana, is on lists of plants you and your pets shouldn't eat (Dracaenas are usually all lumped together for this). People, myself included, have been using lucky bamboo and other Dracaenas for years with frogs with no problems at all. The frogs don't eat the plants, so no worries there.

There's always the fear that crickets will eat the plants and then the frogs eat the crickets, but I've never actually seen or heard of this causing a real problem for anyone outside of their own nightmares.

For what it's worth, I've also had a dog completely mow down the foliage of a good sized Dracaena with no ill effects (the plant also recovered), and have had a few abused by cats with no problems. I don't believe it's high on the list of nasty even to mammals.