My pediatrician's office is closed today or I would just call and ask them. My 2.5 yr old's got itchy watery like eyes (wondering if allergies are getting to him) and I was going to give him some benadryl, however I'm not sure how much to give him. He weighs 33-34 pounds.. I think last year my pediatrician told me to give him 1/4tsp, but not sure.
Re: Bubbly- you around? Benadryl question
I gave my (4 yr old, 34 lbs) daughter 1 tsp last night.
It was the children's Benedryl if that matters.
There are dosage charts for a lot of things like this on the Dr. Sears website. Here is the one for Benadryl (at the bottom):
https://www.askdrsears.com/topics/childhood-illnesses/medicine-cabinet/benadryl