OK - not the same thing, but I was prescribed them for Post Natal Depression. Not come across anybody else that has had them for this, but they were a life saver for me. Made a huge difference, which I only recognised when I tried to come off them when DD was 4 months old. Eventually stayed on them until she was around 8 months old. I remember from the leaflets that they could be prescribed for PMS.
I also used them to support early pregnancy when I was having IUI, but don't recall them giving me PMS symptoms. However, fertility treatment is such a rollercoaster that it's hard to tell what I was feeling at the time!
HTH.