Benadryl is an anti histamine and used to treat allergy. In my opinion, no medicine should be used in pets without consultation of vet because medicines can be toxic for the animals. In cats, Benadryl can be use with a dose of 0.25-0.50 per pound body weight or 0.5-1.0 mg per Kg body weight 2 times a day.
Liquid oral dose of Benadryl is bitter and sometimes cats can not tolerate. That is why intramuscular dose is used in cats.
Liquid oral dose of Benadryl is bitter and sometimes cats can not tolerate. That is why intramuscular dose is used in cats.