Merck Manual

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β-Adrenergic Receptor Agonist Drugs

β-Adrenergic Receptor Agonist Drugs

Drug

Dosage

Epinephrine

Dogs: 0.05–0.5 mg, intratracheally or IV

Cats: 0.1 mg, IV or IM

Large animals: 0.1 mg/kg, IV, SC, or IM

Isoproterenol

Dogs: 0.1–0.2 mg, IM or SC, qid

Cats: 4–6 mcg, IM, every 30 min as needed

Horses: 0.4 mcg/kg, IV (diluted)

Terbutaline

Dogs, cats: 0.1 mg/kg, SC, every 4 hr, or 0.03 mg/kg, PO, tid

Horses: 0.0033 mg/kg, IV, or 0.2–0.6 mg/kg, PO, bid

Albuterol

Dogs: 0.05 mg/kg, PO, tid

Horses: 8 mcg/kg, PO, bid

Clenbuterol

Horses: 0.8–3.2 mcg/kg, PO, bid