If you are suffering from depression or another mental disability, make sure you take the Prozac dose as prescribed by your doctor. To deviate from the proper amount can increase the intensity of the side effects, including a dangerous level of serotonin in your system. If this happens, you will need to go to the hospital. You may even have to stay there until you serotonin returns to a safe level. In addition, not taking the proper Prozac dose can increase suicidal thoughts and tendencies. Even if you want to lower the dose, or quit taking Prozac altogether, you will need the help of your physician to make sure the adverse side effects are at a manageable level.