Table 2.

Suggested loading doses and infusion rates for isoflurane- or sevoflurane-anesthetized dogs and cats. Use lower end of infusion rates when combining 2 or more drugs

Drug	Loading dose (mg/kg BW) intravenous route	Intravenous infusion rate (mg/kg BW per hour)
Morphine	0.15–0.3 slow	0.1–0.2
Hydromorphone	0.05–0.10	0.05–0.10
Fentanyl	0.003–0.005	0.006–0.040
Remifentanil	Fentanyl: 0.003–0.005 (for longer action)	0.006–0.040
Sufentanil	0.001–0.002	0.002–0.006
Dexmedetomidine	0.0005–0.002	0.0005–0.002
Midazolam	0.2–0.4	0.02–0.05
Ketamine	0.5–1.0	0.3–0.6
Propofol	4.0–6.0	12.0–30.0
Alfaxalone	1.0–2.0	4.0–9.0
DOG ONLY
Lidocaine	1.0–2.0	1.8–6.0

BW — body weight