Get Pet Questions Answered by Pet Experts
My vet recommends Tavist or Chlortrimeton.
The GENERAL dose for Chlortremetron is .1mg/lb 3x's daily.
For tavist, .025-.05 mg/lb 2x's daily.
Do NOT give more than three doses. Do NOT use these drugs with anything else, you should ALWAYS consult your vet for proper dosage. There can be side effects to these drugs like everything else so always use with supervision and caution.
There are much better medications that your vet can prescribe.
Let me know if you still have questions.