Get the liquid childrens benadryl, unflavored if possible (all they had was bubblegum or grape flavor when I got mine, she didnt mind)
five ML of children’s Benadryl has 12.5 mg Benadryl which I gave to my goose because she weighs about 12.5 pounds.
Give 1 mg per pound.
the liquid is 2.5 mg...