Babies, or as we call them, froglets, hm?

Well, I wouldn't be too worried. You might want to separate them soon if you don't want frog eggs scattered around the tank.
I doubt it's the medicine, honestly. It probably wouldn't effect frogs in the same way as it does humans. And influenced by the adults is possible, but even so, I'd not stress about it.

Maybe some real Firebelly Toad experts like Bombina Bob will comment. They might know what's going on.