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Generic Name: ketamine (KET a meen)
Brand Names: Ketalar

What is ketamine?

Ketamine is an anesthetic medication.

Ketamine is used as a general anesthetic to prevent pain and discomfort during certain medical tests or procedures, or minor surgery.

Ketamine may also be used for purposes other than those listed in this medication guide.

What is the most important information I should know about ketamine?

Before you receive ketamine, tell your doctor if you are allergic to any drugs, or if you have a history of alcoholism.

It may take you longer to recover from anesthesia with ketamine if you have recently used a barbiturate such as phenobarbital (Luminal) or secobarbital (Seconal), or a narcotic medication such as fentanyl (Actiq, Duragesic), hydrocodone (Lortab, Vicodin), oxycodone (OxyContin), propoxyphene (Darvocet, Darvon), and others.

You may feel strange or slightly confused when you first come out of anesthesia. Tell your caregivers if these feelings are severe or unpleasant.

Follow your doctor's instructions about any restrictions on food, beverages, or activity after you recover from anesthesia.

What should I discuss with my health care provider before receiving ketamine?

Before you receive ketamine, tell your doctor if you are allergic to any drugs, or if you have a history of alcoholism.

How is ketamine given?

Ketamine is given as an injection through a needle placed into a vein or muscle. You will receive this injection in a clinic or hospital setting.

Your caregivers will monitor your heart function, blood pressure, and breathing while you are under the effects of ketamine.

You may feel strange or slightly confused when you first come out of anesthesia. Tell your caregivers if these feelings are severe or unpleasant.

What happens if I miss a dose?

Since ketamine is usually given for anesthesia, you are not likely to be on a dosing schedule.

What happens if I overdose?

An overdose of ketamine is unlikely to occur since the medication is given by a doctor. Your vital signs will be closely watched while you are under anesthesia to make sure the medication is not causing any harmful effects.

What should I avoid after receiving ketamine?

Follow your doctor's instructions about any restrictions on food, beverages, or activity after you recover from anesthesia.

Ketamine side effects

• severe confusion;

• hallucinations;

• unusual thoughts; or

• extreme fear.

Less serious side effects may include:

• dream-like feeling;

• double vision;

• jerky muscle movements;

• dizziness, drowsiness;

• nausea, vomiting, loss of appetite; or

• sleep problems (insomnia).

Other side effects may also occur. Tell your doctor about any unusual or bothersome side effects.

What other drugs will affect ketamine?

Before you receive ketamine, tell your doctor if you have recently used any of the following:

• a barbiturate such as amobarbital (Amytal), butabarbital (Butisol), mephobarbital (Mebaral), secobarbital (Seconal), or phenobarbital (Luminal, Solfoton); or

• narcotic medication such as fentanyl (Actiq, Duragesic, Ionsys), hydrocodone (Lortab, Vicodin), hydromorphone (Dilaudid, Palladone), methadone (Dolophine, Methadose), morphine (Kadian, MS Contin, Oramorph), oxycodone (OxyContin, Percocet, Roxicodone), propoxyphene (Darvocet, Darvon), and others.

If you are using any of these drugs, it may take you longer to recover from anesthesia with ketamine.

There may be other drugs that can affect ketamine. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Where can I get more information?

• Your doctor or pharmacist can provide more information about ketamine.

• Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.