Get emergency medical help if you have signs of an allergic reaction to Celexa: skin rash or hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Report any new or worsening symptoms to your doctor, such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.
Call your doctor at once if you have:
a light-headed feeling, like you might pass out;
blurred vision, tunnel vision, eye pain or swelling, or seeing halos around lights;
headache with chest pain and severe dizziness, fainting, fast or pounding heartbeats;
severe nervous system reaction - very stiff (rigid) muscles, high fever, sweating, confusion, fast or uneven heartbeats, tremors, feeling like you might pass out;
high levels of serotonin in the body - agitation, hallucinations, fever, fast heart rate, overactive reflexes, nausea, vomiting, diarrhea, loss of coordination, fainting; or
low levels of sodium in the body - headache, confusion, slurred speech, severe weakness, vomiting, feeling unsteady.
Common Celexa side effects may include:
problems with memory or concentration;
headache, drowsiness;
dry mouth, increased sweating;
numbness or tingling;
increased appetite, nausea, diarrhea, gas;
fast heartbeats, feeling shaky;
sleep problems (insomnia), feeling tired;
cold symptoms such as stuffy nose, sneezing, sore throat;
changes in weight; or
difficulty having an orgasm.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Celexa side effects (more detail)
