Ask a Dog Vet and Get Answers to Your Dog Health Questions
Hello. Thanks for the question.
With rattlesnake bites, the best option is antivenin. If that's not an option, then Benadryl and steroids can be used.
I would give oral Benadryl at a dose of 1-2 mg per lb body weight. It can be given every 6 hours I would give it for a good 6-8 hours.
With injectable Dexamethasone, I would give a dose of 0.2 mg/kg (0.1 mg per lb) sub Q/ under the skin every 12-24 hours for 3 days.
I hope this helps, let me know if you have any other questions.