How much zyrtec do i give my 15 lb dog?
I don't think dogs can take Zyrtec but I agree. Ask your vet.
Your best bet is to call your vet and ask them. I know with my dog we gave her 1 benadryl but she weighed a lot more than 15 lbs (closer to 70 lbs).
Be safe and check with your vet to make sure it's even safe Don't depend on people you don't know for answers to something like that