Ketamine injection

What is ketamine injection?

KETAMINE (Ketalar®) reduces anxiety and tension, and promotes relaxation and sleep before surgery or other procedures. Ketamine is used before short diagnostic tests and surgical procedures and may supplement other types of general anethesia. Generic ketamine injections are available.

What should my health care professional know before I receive ketamine?

They need to know if you have any of these conditions:

  • if you frequently drink alcohol-containing beverages

  • brain tumor or head injury

  • eye injury

  • glaucoma or increased pressure in the eye

  • heart disease, including angina, heart failure, or heart attack

  • high blood pressure

  • psychosis or schizophrenia

  • stroke

  • an unusual or allergic reaction to ketamine, anesthetics, other medicines, foods, dyes, or preservatives

How should I use this medicine?

Ketamine is for injection into a muscle or infusion into a vein. It is given by a trained anesthesia professional in a controlled environment, like a hospital or surgical clinic.

What if I miss a dose?

This does not apply.

What drug(s) may interact with ketamine?

  • alcohol

  • barbiturate medicines for inducing sleep or treating seizures (convulsions)

  • medicines for high blood pressure

  • medicines for anxiety or sleeping problems, such as diazepam or temazepam

  • medicines for hay fever and other allergies

  • medicines for mental depression

  • medicines for mental problems and psychotic disturbances

  • medicines for pain

  • muscle relaxants

  • thyroid hormones

Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.

What should I watch for while taking ketamine?

You will be closely monitored following administration of ketamine.

Ketamine can cause significant drowsiness, dizziness, and lack of coordination lasting many hours after the dose is given. Do not attempt to drive or operate machinery for at least 24 hours after a dose of ketamine.

Avoid alcohol, mood-altering drugs, or any other medicines for at least 24 hours after a dose of ketamine, unless approved by your prescriber or health care professional.

What side effects may I notice from receiving ketamine?

Side effects that you should report to your prescriber or health care professional as soon as possible:

  • lightheadedness or fainting spells

  • fast or slow heartbeat, palpitations

  • involuntary and uncontrollable muscle movements (may appear like seizures)

  • slow breathing, difficulty breathing

Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):

  • anxiety

  • disorientation

  • dizziness, drowsiness

  • double vision, involuntary eye movements

  • hallucinations, nightmares, a feeling of floating, or unreality (these usually go away within a short time)

  • nausea, vomiting

  • loss of appetite

  • pain or irritation at the injection site

Where can I keep my medicine?

This does not apply. You will not be taking this medicine at home.