Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Tell your caregivers at once if you have any of these serious side effects within 24 hours after you receive ketamine: severe confusion, hallucinations, unusual thoughts, or extreme fear.
Call your doctor at once if you have:
painful or difficult urination, increased urination, loss of bladder control, blood in your urine;
a light-headed feeling, like you might pass out;
slow heart rate, weak or shallow breathing; or
jerky muscle movements that may look like convulsions.
Common side effects may include:
dream-like feeling;
blurred vision, double vision;
dizziness, drowsiness;
nausea, vomiting, loss of appetite; or
sleep problems (insomnia).
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.
 Ketamine side effects (more detail)
