A wonderful lesson in unintended consequences.
The theme of the desirability or otherwise of forgetting unpleasant experiences is one I tackled in a flash piece, “Forget You”, which you can read here:
http://dailysciencefiction.com/science-fiction/virtual-reality/mike-reeves-mcmillan/forget-you
http://www.atlasobscura.com/articles/twilight-sleep-childbirth-1910s-feminists
This drug combination reminded me of the effects of Rohypnol and I was expecting to read something awful like doctors or other staff abusing women. Then I read your story and was expecting the same thing!