The results of a wide ranging medical research project show that anti-depressants increase the chances of inter-cranial hemorrhage.

The researchers found that those who use anti-depressants have a 40-50% greater chance of inter-cranial bleeding or bleeding in the brainal area. The drugs used in the project included prozac, zoloft, celexa and paxil.

The study is based on data from 16 previous research projects involving over a half million people.