SIDE EFFECTS: See also the Warning section. Dizziness, lightheadedness, drowsiness, diarrhea, dry mouth, constipation, increased appetite, weight gain, or trouble sleeping may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Dizziness and lightheadedness can increase the risk of falling. Get up slowly when rising from a sitting or lying position. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: unusual or severe mental/mood changes (e.g., confusion, nervousness, trouble concentrating, rare thoughts of suicide), swelling hands/ankles/feet, restlessness, shaking (tremor), inability to keep still, decreased interest in sex, changes in sexual ability, trouble urinating, black stools, vomit that looks like coffee grounds, easy bruising/bleeding, muscle spasm, yellowing eyes/skin, severe stomach/abdominal pain, slow heartbeat, interrupted breathing during sleep. Get medical help right away if any of these rare but serious side effects occur: fainting, severe headache, seizures, eye pain/swelling/redness, widened pupils, vision changes (such as seeing rainbows around lights at night, blurred vision). This drug may rarely make your blood sugar rise, which can cause or worsen diabetes. Tell your doctor right away if you have symptoms of high blood sugar such as increased thirst/urination. If you already have diabetes, check your blood sugar regularly as directed and share the results with your doctor. Your doctor may need to adjust your diabetes medication, exercise program, or diet when you start or stop this medication. This drug may also cause significant weight gain and a rise in your blood cholesterol (or triglyceride) levels, especially in teenagers. These effects, along with diabetes, may increase your risk for developing heart disease. Discuss the risks and benefits of treatment with your doctor. (See also Notes section.) This medication may increase serotonin and rarely cause a very serious condition called serotonin syndrome/toxicity. The risk increases if you are also taking other drugs that increase serotonin, so tell your doctor or pharmacist of all the drugs you take (see Drug Interactions section). Get medical help right away if you develop some of the following symptoms: fast heartbeat, hallucinations, loss of coordination, severe dizziness, severe nausea/vomiting/diarrhea, twitching muscles, unexplained fever, unusual agitation/restlessness. This medication may rarely cause a very serious condition called neuroleptic malignant syndrome (NMS). Get medical help right away if you have any of the following symptoms: fever, muscle stiffness/pain/tenderness/weakness, severe tiredness, severe confusion, sweating, fast/irregular heartbeat, dark urine, signs of kidney problems (such as change in the amount of urine). Olanzapine may rarely cause a condition known as tardive dyskinesia. In some cases, this condition may be permanent. Tell your doctor right away if you develop any unusual/uncontrolled movements (especially of the face/lips/tongue). In rare cases, this medication may increase your blood level of a certain hormone (prolactin). For females, this rare increase in prolactin levels may result in unwanted breast milk, irregular/stopped menstrual periods, or difficulty becoming pregnant. For males, it may result in decreased sexual ability, inability to produce sperm, or enlarged breasts. If you develop any of these symptoms, tell your doctor right away. For males, in the very unlikely event you have a painful or prolonged erection lasting 4 or more hours, stop using this drug and seek immediate medical attention, or permanent problems could occur. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: fever, swollen lymph nodes, rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: Before taking olanzapine/fluoxetine, tell your doctor or pharmacist if you are allergic to olanzapine or fluoxetine; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: personal or family history of suicide attempts, breast cancer, intestinal problems (e.g., paralytic ileus, chronic constipation), kidney disease, liver problems, low blood pressure, neuroleptic malignant syndrome, personal or family history of glaucoma (angle-closure type), prostate problems, seizures, stomach/intestinal ulcers, brain problems (e.g., dementia, stroke), severe loss of body water (dehydration), low white blood cell count, personal or family history of diabetes, heart disease, high cholesterol/triglyceride levels, breathing trouble during sleep (sleep apnea). This drug may make you dizzy or drowsy. Alcohol or marijuana can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Avoid alcoholic beverages. Talk to your doctor if you are using marijuana. Fluoxetine may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can rarely cause serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away. The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using olanzapine/fluoxetine, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death). Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using this medication safely. This medication can make it harder to control your body temperature. Avoid activities that might cause you to overheat (e.g., doing strenuous work, exercising in hot weather, or using hot tubs). Drink plenty of fluids to avoid becoming dehydrated. Teenagers may be more sensitive to the side effects of this drug, especially weight gain, and also increased amounts of cholesterol, triglycerides and prolactin. See also Side Effects section for more details. Older adults may be more sensitive to the side effects of this drug, especially QT prolongation (see above), drowsiness, constipation, trouble urinating, confusion, dizziness, and lightheadedness. Older adults may also be more likely to develop low sodium in the blood, especially if they are taking "water pills" (diuretics). Drowsiness, confusion, dizziness, and lightheadedness can increase the risk of falling. During pregnancy, this medication should be used only when clearly needed. Babies born to mothers who have used this drug during the last 3 months of pregnancy may rarely develop symptoms including muscle stiffness or shakiness, drowsiness, feeding/breathing difficulties, or constant crying. If you notice any of these symptoms in your newborn especially during their first month, tell the doctor right away. Since untreated mental/mood problems (such as depression, bipolar disorder) can be a serious condition, do not stop taking this medication unless directed by your doctor. If you are planning pregnancy, become pregnant, or think you may be pregnant, immediately discuss with your doctor the benefits and risks of using this medication during pregnancy. This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Fluoxetine (one of the drugs in this medication) can stay in your body for many weeks after your last dose and may interact with many other medications. If you have taken this medication in the previous 5 weeks, consult your doctor or pharmacist before using any other medication. Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: drugs removed from your body by certain liver enzymes (e.g., cimetidine, phenytoin, vinblastine, antipsychotics such as aripiprazole/clozapine/haloperidol/perphenazine, antiarrhythmics such as propafenone/flecainide, TCA antidepressants such as desipramine/imipramine), fosamprenavir/ritonavir, metoprolol, "water pills" (diuretics such as furosemide), drugs that can cause bleeding/bruising (e.g., aspirin, antiplatelet drugs such as clopidogrel, NSAIDs such as ibuprofen, "blood thinners" such as heparin, warfarin), drugs for high blood pressure, medicines for Parkinson's disease (e.g., cabergoline). Taking MAO inhibitors with his medication may cause a serious (possibly fatal) drug interaction. Avoid taking MAO inhibitors (isocarboxazid, linezolid, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, tranylcypromine) during treatment with this medication. Most MAO inhibitors should also not be taken for 2 weeks before and at least 5 weeks after treatment with this medication. Ask your doctor when to start or stop taking this medication. Many drugs besides fluoxetine may affect the heart rhythm (QT prolongation), including pimozide and thioridazine, among others. Aspirin can increase the risk of bleeding when used with this medication (see above). If your doctor has directed you to take low-dose aspirin for heart attack or stroke prevention (usually at dosages of 81-325 milligrams a day), you should continue taking it unless your doctor instructs you otherwise. Discuss the risks and benefits with your doctor. The risk of serotonin syndrome/toxicity increases if you are also taking other drugs that increase serotonin. Examples include street drugs such as MDMA/"ecstasy" St. John's wort, certain antidepressants (including other SSRIs such as citalopram/paroxetine, SNRIs such as duloxetine/venlafaxine), tryptophan, among others. The risk of serotonin syndrome/toxicity may be more likely when you start or increase the dose of these drugs. Tell your doctor or pharmacist if you are taking other products that cause drowsiness such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana, drugs for sleep or anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), or antihistamines (such as cetirizine, diphenhydramine). Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain ingredients that cause drowsiness. Ask your pharmacist about using those products safely. Cimetidine is a nonprescription drug that is commonly used to treat extra stomach acid. Because it may cause undesirable interactions when used with fluoxetine, ask your pharmacist about other products to treat stomach acid. Cigarette smoking may decrease blood levels of this medication. Tell your doctor if you smoke or if you have recently stopped smoking. This medication may interfere with certain medical/laboratory tests (including brain scan for Parkinson's disease), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.

OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: irregular heartbeat, seizures, loss of consciousness.