I read on st louis children's hospital website you can give child 20-24 lbs (under 1 yr) 3/4 tsp benadryl (diphenhydramine) for nasal allergies. is that true?

Dosage of benadryl (diphenhydramine): Liquid benadryl 22 -28 lbs ¾ tsp (3.75 ml) under 22lbs call the pediatrician.

Benadryl (diphenhydramine): While the recommended dose of Benadryl (diphenhydramine) it is often difficult to distinguish between is 3/4 tsp and one teaspoon. Therefore it is important to use a calibrated or measuring spoon for accurate dosing.