CHQ: I have a faculty member looking for some very specific information and I've had no luck using our resources. Her question is: How long after receiving dexamethasone (20 ml) via an IV does the cortisol level drop? She is studying this as it applies to breast cancer treatments. Any help you can provide would be greatly appreciated!
  thanks,
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Summary: What is the effect of dexamethasone on cortisol levels?