For people being treated with olanzapine extended-release (long-acting) injection:
When you receive olanzapine extended-release injection, the medication is usually released slowly into your blood over a period of time. However, when you receive olanzapine extended-release injection, there is a small chance that olanzapine may be released into your blood too quickly. If this happens, you may experience a serious problem called Post-injection Delirium Sedation Syndrome (PDSS). If you develop PDSS, you may experience dizziness, confusion, difficulty thinking clearly, anxiety, irritability, aggressive behavior, weakness, slurred speech, difficulty walking, muscle stiffness or shaking, seizures, drowsiness, and coma (loss of consciousness for a period of time). You are most likely to experience these symptoms during the first 3 hours after you receive the medication. You will receive olanzapine extended-release injection in a hospital, clinic, or other medical facility where you can receive emergency medical treatment if it is needed. You will need to remain in the facility for at least 3 hours after you receive the medication. While you are in the clinic, the medical staff will watch you closely for signs of PDSS. When you are ready to leave the facility, you will need a responsible person to be with you, and you should not drive a car or operate machinery for the rest of the day. Get emergency medical help right away if you experience any symptoms of PDSS after you leave the facility.
A program has been set up to help people receive olanzapine extended-release injection safely. You will need to register and agree to the rules of this program before you receive olanzapine extended-release injection. Your doctor, the pharmacy that dispenses your medication, and the medical facility where you receive your medication will also need to register. Ask your doctor if you have any questions about this program.
For people being treated with olanzapine extended-release injection or olanzapine injection:
Studies have shown that older adults with dementia (a brain disorder that affects the ability to remember, think clearly, communicate, and perform daily activities and that may cause changes in mood and personality) who take antipsychotics (medications for mental illness) such as olanzapine have an increased chance of death during treatment. Older adults with dementia may also have a greater chance of having a stroke or ministroke during treatment.
Olanzapine injection and olanzapine extended-release injection are not approved by the Food and Drug Administration (FDA) for the treatment of behavior disorders in older adults with dementia. Talk to the doctor who prescribed this medication if you, a family member, or someone you care for has dementia and is being treated with olanzapine injection or olanzapine extended-release injection. For more information visit the FDA website: Web Site
Your doctor or pharmacist will give you the manufacturer's patient information sheet (Medication Guide) when you begin treatment with olanzapine extended-release injection and each time you receive an injection. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit the Food and Drug Administration (FDA) website ( Web Site) or the manufacturer's website to obtain the Medication Guide.
Talk to your doctor about the risks of receiving olanzapine injection or olanzapine extended-release injection.
Olanzapine extended-release injection is used to treat schizophrenia (a mental illness that causes disturbed or unusual thinking, loss of interest in life, and strong or inappropriate emotions). Olanzapine injection is used to treat episodes of agitation in people who have schizophrenia or in people who have bipolar I disorder (manic depressive disorder; a disease that causes episodes of depression, episodes of severe mania, and other abnormal moods) and are experiencing an episode of mania (abnormally excited or irritated mood). Olanzapine is in a class of medications called atypical antipsychotics. It works by changing the activity of certain natural substances in the brain.
Olanzapine injection and olanzapine extended-release injection come as powders to be mixed with water and injected into a muscle by a healthcare provider. Olanzapine injection is usually given as needed for agitation. If you are still agitated after you receive your first dose, you may be given one or more additional doses. Olanzapine extended-release injection is usually given once every 2 to 4 weeks.
Olanzapine extended-release injection may help control your symptoms but will not cure your condition. Continue to keep appointments to receive olanzapine extended-release injection even if you feel well. Talk to your doctor if you do not feel like you are getting better during your treatment with olanzapine extended-release injection.
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Before receiving olanzapine injection or olanzapine extended-release injection,
Unless your doctor tells you otherwise, continue your normal diet.
If you forget to keep an appointment to receive olanzapine extended-release injection, call your doctor to schedule another appointment as soon as possible.
Olanzapine injection and olanzapine extended-release injection may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
Some side effects can be serious. If you experience any of these symptoms or those listed in the IMPORTANT WARNING section, call your doctor immediately or get emergency medical treatment:
Olanzapine injection and olanzapine extended-release injection may cause other side effects. Call your doctor if you have any unusual problems while you are receiving this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online ( Web Site ) or by phone (1-800-332-1088).
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at Web Site. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.
Symptoms of overdose may include the following:
Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests to check your body's response to olanzapine injection or olanzapine extended-release injection.
Ask your pharmacist any questions you have about olanzapine injection or olanzapine extended-release injection.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
AHFS® Consumer Medication Information. © Copyright, The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.
Selected Revisions: July 15, 2017.