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© 1997-2005
Updated 02 May 2005.
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Updated 15 July 2005


Department of Laboratory Animal Resources - Medical Care

Use of Analgesics, Tranquilizers, and Anesthetic Agents in Laboratory Animals

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Mouse Anesthesia
Anesthetic
Concentration
Dose and Route
Onset
Duration of Surgical Anesthesia
Mouse Cocktail

(Ketamine, Xylazine)

Ketamine 30mg/ml
Xylazine 4mg/ml
0.1-0.2ml/25 gm
IM, IP
3-5 minutes
30-40 minutes
Isoflurane 
(need precision vaporizer to deliver the agent)
induction 4-5%
maintenance 1-2%
Inhalation
2-3 minutes
until disconnected
Halothane 
(need precision vaporizer to deliver the agent)
 induction 4-5%
maintenance 1-2%
Inhalation
2-3 minutes
until disconnected
Medetomidine* + Ketamine
Medetomidine 1mg/ml
Ketamine 100mg/ml
M - 1 mg/kg IM
K = 75mg/kg
2 minutes
30 minutes
Mouse Cocktail
(Ketamine, Xylazine)
Ketamine 30mg and
Xylazine 4mg per ml of mouse cocktail
0.1-0.2ml/25 gm IP
3-5 minutes
30-40 minutes
Pentobarbital
65mg/ml
50mg/kg IP
(40-90 range)
1.25mg/25gm
5 minutes
30 minutes
Rat Cocktail (double strength mouse cocktail)
Ketamine 60mg/ml and
Xylazine 8mg per ml of rat cocktail
0.05-0.1ml/25 gm
IP, IM
3-5 minutes
30-40 minutes

*can be reversed with atipamezole (1mg/kg SC, IP or IV)

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