My dog gets extreme anxiety flying. Is Klonopin safe for her?

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your concern. Klonopin (Clonazepam) is a drug that we commonly use for anxiety in animals. Based on the veterinary drug book, the recommended dose for Clonazepam in dogs is 0.1 - 1 mg/kg by mouth every 12-24 hours. So for example, 30lb would equal 13.6kg. So the dose this body weight should receive would be 1.4mg every 12-24 hours as the lowest dose and 13.6mg every 12-24 hours as the highest dose. I always recommend testing out a new medication prior to using it for its intended purpose to see if it works. If this is expired, I would refrain against using this. As always, I would contact your veterinarian, whom you usually see for Olive and discuss using this medication with the vet on the phone as I do not know the full medical history on Olive. I hope this helps! Please let me know if you have any other questions or concerns.