Escaped and ate sugar cane

There is something that can be done for bloat. Contact the vet, there is activated charcoal available for horses. I had a horse that foundered easily get out into a hayfield that was in full bloom. We immediately gave him activated charcoal and he didn't founder. But yes I would seek vet care right away.

Thank you for your advice. I live 2 hours from the closest vet in an isolated valley. I was reassured by my neighbors that horses around here in Costa Rica are used to eating sugar cane and that they would be fine. I don't think either one of them had a lot if any, they probably just chewed on some stalks and broke and stomped on them. They didn't get any symptoms and are fine. Thanks again!