Ketamine/Xylazine dose for rats?

Kate Jeffery kate at anatomy.ucl.ac.uk
Mon May 22 06:14:52 EST 1995


In article 5q7 at synapse.bms.com, Allison_F._Treloar at ccmail.bms.com 
(Allison Treloar) writes:
> The best rodent anesthesia I have ever used is Isoflurane inhaled
> anesthetic! 

I agree. We use this too and it is wonderful. We also add nitrous oxide 
to get better analgesia. However, isoflurane is horrendously expensive 
and a long operation can set you back several tens of pounds/dollars.

As for the light/dark cycle thing, there are known circadian influences 
on anaesthesia requirements. People with afternoon dentist's appointments 
apparently need significantly more pain relief (I don't have a ref. for 
this offhand but could probably find one). It's interesting that rats possibly 
show this effect too.


Kate Jeffery
kate at anatomy.ucl.ac.uk




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