Page 394 - Feline Cardiology

Table 27.2. Drugs used in anesthesia for the feline cardiac patient
Drug Dose Route Indication(s) Notes

Atropine 0.01–0.04 mg/kg SQ, IM, IV Prevention or treatment of Use low dose if IV
bradycardia
Glycopyrrolate 0.005–0.01 mg/kg SQ, IM, IV Prevention or treatment of
bradycardia
Acepromazine 0.01–0.03 mg/kg SQ, IM, IV Sedation Combine with opioid
Oxymorphone 0.02–0.1 mg/kg SQ, IM, IV Analgesia, premedication
Hydromorphone 0.04–0.1 mg/kg SQ, IM, IV Analgesia, premedication
Methadone 0.2–0.5 mg/kg SQ, IM, IV Analgesia, premedication
Buprenorphine 0.01–0.03 mg/kg SQ, IM, IV, buccal Analgesia, premedication
Butorphanol 0.1–0.4 mg/kg SQ, IM, IV Analgesia, premedication
Midazolam 0.1–0.3 mg/kg SQ, IM, IV Sedation, muscle relaxation, May cause dysphoria
reduction of dose of induction
agent
Diazepam 0.2–0.5 mg/kg IV Sedation, muscle relaxation, May cause dysphoria
reduction of dose of induction
agent
Medetomidine 0.002–0.02 mg/kg SQ, IM, IV Sedation 0.02–0.04 mg/kg in
fractious cats
Dexmedetomidine 0.001–0.01 mg/kg SQ, IM, IV Sedation 0.01–0.02 mg/kg in
fractious cats
Ketamine 5–10 mg/kg IM Sedation Use with other drugs
Telazol® 3 mg/kg IM Sedation
Etomidate 0.5–1.5 mg/kg IV Induction Use with benzodiazepine;
titrate to effect
Propofol 4–8 mg/kg IV Induction Titrate to effect
Ketamine 5 mg/kg IV Induction Titrate to effect
Isoflurane 0–3% Inhalation Maintenance
Sevoflurane 0–4% Inhalation Maintenance
Fentanyl 0.005 mg/kg IV Loading dose, intraoperative
analgesia/balanced anesthesia
Fentanyl 0.006–0.024 mg/kg/h IV Constant rate infusion,
intraoperative analgesia/
balanced anesthesia
Nitrous oxide 50–70% Inhalation Intraoperative analgesia/ Causes sympathetic
balanced anesthesia stimulation
Dopamine 3–10 µg/kg/min IV Increase myocardial contractility Titrate to effect on blood
Anesthesia Dobutamine 3–10 µg/kg/min IV Increase myocardial contractility Titrate to effect on blood
pressure
pressure
Increase systemic vascular
Phenylephrine
0.2–1 µg/kg/min
IV
pressure
resistance Titrate to effect on blood
Esmolol 0.1 mg/kg/min IV Treatment of tachyarrhythmias
Edrophonium 0.5–1 mg/kg IV Treatment of supraventricular
tachycardia
Diltiazem 0.02–0.1 mg/kg IV Treatment of supraventricular
tachycardia
Lidocaine 0.5–1 mg/kg IV Treatment of ventricular Do not exceed 4 mg/kg
arrhythmias total dose

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