[ConservativeMind]

Both, but tough to find.

Here is one place that has it:

https://www.northwestpharmacy.com/product/tavist-allergy

[tired&retired]

It is used in dogs as an allergy medicine.

I checked, under $50 for 100 tablets of 2.8 mg at Wal-Mart’s Pet-Rx. I don’t think a prescription is required.