One of my staff left out an undiluted bottle of Botox, and it was not refrigerated for about 3 days. Is it still effective?

It is not reasonable or appropriate to use this product clinically.  It should be considered a loss.  I my office, I do not let my staff handle BOTOX.  I take responsibility for the diluting, drawing up, administering, and storing of the BOTOX.  

The recommendation is to keep Botox refrigerated before and after dilution.  If it was out for three days I would not trust it.