You diagnose Emily with polycystic ovarian syndrome (PCOS) and decide to prescribe drospirenone-ethinyl-estradiol as a way to control both the PCOS symptoms, as well as to act as an oral contraceptive.
At what dose should this be prescribed?
What is the mechanism of drospirenone-ethinyl-estradiol, and why would, because of its mechanism, it be a good choice for her PCOS symptoms (Include the medication-altered physiology)?
How would you monitor for efficacy and toxicity?