Effexor withdrawal can be a big problem. If you want to get off the drug, do it with a doctor's supervision. You do not want to quit cold turkey. The drug already increases the incidents of suicidal thoughts and behavior. It can also be the reason for bleeding problems, seizures and more. If you think you want to quit taking Effexor, see your doctor. He/she will slowly decrease your dose, until you can safely be removed from the drug. If you want off Effexor, because you have suffered illness or injury, you might also want to consult a lawyer for advice regarding your personal options.