Last year the goats escaped and got into the rhododendrons. While the entire herd munched leaves and buds, only 2 got sick. They were vomiting green frothy foam and could not keep down any sort of food, or water. Both goats survived the experience, and were normal within 48 hours. I handled the poisoning by syringing a mixture of montmorillonite clay, activated charcoal, prebiotic and zeolite. I gave only a couple CCs at a time, every 15-30 minutes, then less often as the symptoms improved. I also gave homeopathic Nux Vomica.
As we still have rhododendrons on the property, I keep all these items on hand in my first aid kit just in case. You can find homeopathic remedies at your local health food store or online at Washington Homeopathics.
Here are a couple reference links I found useful. There are several remedies mentioned in the case study. The names are abbreviated. These would be useful to keep on hand in an emergency kit.
These statements have not been evaluated by the Food and Drug Administration or American Veterinary Medical Association, and are not intended to diagnose, treat, cure or prevent any disease. Always consult your veterinarian about any changes to your animal’s health program.