The scary thing is that, even though I KNOW I've had PCOS for years, I didn't start having problems with neverending periods until I started Depakote last year. I had a 12 day period 2 weeks after I started it. My next period was heading the same way so I looked up the medicine and sure enough, it causes menstrual abnormalities. I brought this up to my psychiatrist (I was using Depakote as a mood stabilizer) and he had never heard such a thing.
The really bad thing is that it is the only medicine we have found that works for me.
Brenda