Get detailed information on Diphenhydramine ... PO- Adult- The recommended dose is 25 mg to 50 mg (1 to 2 capsules). Child- The recommended dose is 12.5 mg to 25 mg (1 capsule).
Diphenhydramine HCl 50mg/mL; for IV or IM inj ... Sodium-restricted diet. Children. Pregnancy (Cat.B in 3 rd trimester): not recommended. Nursing mothers.