Codeine

Dogs: 1–2 mg/kg, PO, q 6–12 h

Hydrocodone

Dogs: 0.25 mg/kg, PO, q 6–12 h

Butorphanol

Dogs: 0.055–0.11 mg/kg, SC, q 6–12 h, or 0.55–1.1 mg/kg, PO, q 6–12 h

Cats: 0.1–0.4 mg/kg, SC, q 6–12 h

Maropitant

Dogs: 2 mg/kg, PO, q 48 h