Unless you have grown up under a rock, you probably already know about Prozac side effects. The drug has been proven to increase suicidal thoughts and behaviors in patients. Children and teenagers are even more susceptible to the desire to act on those thoughts. In addition, if you take other medication for migraine headaches, you may be setting yourself up for a disease called Serotonin Syndrome. If you are pregnant or are thinking about becoming pregnant, do not take Prozac. It can harm your unborn baby's pulmonary system. Also, Prozac is a very powerful drug. So, if you want to quit taking the medication, please consult your doctor. To quit cold turkey can result in very dangerous side effects.