If you use one needle to mix, another to inject, and a third to draw and inject the remainder, it should remain sterile. We have vials of medicine we inject our dog with, and each vial lasts about 25 injections or so.  It is supposed to remain sterile, because each needle is sterile when it goes in to draw it. Of course, maybe it also has preservatives in it that we don't know about.
Michelle
 
In a message dated 3/10/05 9:30:55 AM Eastern Standard Time, [EMAIL PROTECTED] writes:
Nina, are you sure you really have a way to keep the unused sterile? I'd be
really worried about that.
 

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