Get emergency medical help if you have signs of an allergic reaction to Xyrem: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
weak or shallow breathing, breathing that stops for short periods of time;
sleepwalking, waking and confused behavior at night;
confusion, paranoia, hallucinations (seeing or hearing things);
depression, anxiety, unusual or unpleasant thoughts; or
suicidal thoughts or actions.
Common Xyrem side effects may include:
sleepwalking;
headache;
weight loss;
loss of appetite;
drowsiness, dizziness;
bed-wetting;
nausea, vomiting; or
tremors.
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.
 Xyrem side effects (more detail)
