Why do I have to stop taking Celexa gradually?
Celexa and other SSRIs and SNRIs (serotonin and norepinephrine reuptake inhibitors) have been reported to cause side effects when stopped suddenly. Some of these side effects can include sad mood, irritability, sensory disturbances (electric shock sensations), agitation, dizziness, anxiety, confusion, headache and insomnia. When they occur, these effects usually go away on their own, but your doctor may recommend a gradual lowering of your Celexa dose to reduce the chance of experiencing these side effects.