Short Attention Span Summary Ingredients and dose matter in oral contraceptives.  Lower dose estrogen –  20 vs. 30-40 micrograms  – was safer, with lower risk for PE, stroke, and MI.  Regarding the progestogen, desogestrel and gestodene, compared to levonorgestrel, were associated with ~2x the risk of PE but not stroke or MI.  Why does this matter?  The […]