what antihistamines are safe for dogs australia?
['dexchlorpheniramine (Polaramine®) – this is a first gen. ... ', 'promethazine (Pherergan®) – this is also a first gen. ... ', 'fexofenadine (Telfast®) – this is a second gen. ... ', 'loratadine (Claratyne®) – also second gen. ... ', 'cetirizine (Zyrtec®) – also second gen.']