Diphenhydramine HCl 50mg/mL; for IV or IM inj. Asthma and lower respiratory disorders. Glaucoma. Hyperthyroidism. Hypertension. Cardiovascular disease. GI or urinary obstruction. Sodium-restricted ...

EpiPen is a first-line, emergency treatment for severe allergic reactions. Benadryl is used for milder allergic reactions. The decision of when to use one or the other depends on the specific ...