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 ...

According to the Merck Veterinary Manual’s antihistamine dosages table, the recommended dosage of diphenhydramine is 2–4 mg/kg, IM, PO, or SC, q 8–12 h as needed. This means that pet parents should ...

Diphenhydramine, an active ingredient in various products, is available in multiple oral dosage forms, including tablets, film-coated tablets, rapidly disintegrating (dissolving) tablets, capsules, ...