Diphenhydramine

Anithistamine

Diphenhydramine blocks histamine release, thereby reducing bronchoconstriction, vasodialation and edema. It suppresses central cholinergic activity and prolongs the action of dopamine by inhibiting its reuptake and storage.

Anaphlylaxis, allergic reactions and dystonic reactions

Asthma and other lower respiratory diseases

• - Drowsiness
• - Tachycardia
• - Dizziness
• - Hypertension / Hypotension

25 to 50mg IV/IM

6 - 12 year olds- 12.5 to 25mg IV/IM

under 6 years old- 2 to 5mg/kg IV/IM, not to exceed 25mg