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 ...

Protection Afforded by Oral, Intravenous, Rectal and Aerosol Administration of Diphenhydramine against Dyspnea and Bronchospasm Induced by Histamine and Methacholine in Asthmatic Patients.

Benadryl, the brand name of the generic antihistamine diphenhydramine, is not labeled for use in dogs but has remained a popular choice among veterinarians, dog groomers, and dog-owning families ...