ARGH I just posted a reply and lost it all...

Okay... first aid with cane toad stuff is within the first few minutes to wash off the dogs mouth, rinsing the gums as the toxin can get on them & cause issues. The toxin is absorbed through the mucous membranes, not the stomach.

If its too late for that (and I would assume it is) than just keep an eye on him & if he shows signs like shaking or licking abnormally, get him to your closest 24 hour vet. There's 2 on the northside and 1 in underwood which are all very good. I would also call the closest one to you and find out if there is anything else to keep an eye on. The first 12 hours are vital.

It is a dangerous toxin for dogs... I have seen dogs die from it, so don't feel like you are being paranoid.