SEROQUEL XR for Major Depressive Disorder

SEROQUEL XR may help improve your unresolved symptoms of depression when added to an antidepressant

SEROQUEL XR is FDA approved to treat major depressive disorder as add-on therapy to an antidepressant medication.

If you’ve taken an antidepressant for 6 weeks or more and are still experiencing symptoms of depression, talk to your doctor. He or she may consider adding a medication like SEROQUEL XR to help with your current treatment plan.

SEROQUEL XR is taken once daily as prescribed by your health care professional. Adding SEROQUEL XR to your current antidepressant may help further improve your unresolved symptoms of depression. And remember, adding SEROQUEL XR doesn’t mean having to start over, but it may mean starting to improve your unresolved symptoms.

It’s also important to remember that SEROQUEL XR has side effects—learn more about these possible side effects.

When studied in patients with unresolved depression already taking an antidepressant, adding SEROQUEL XR to an ongoing antidepressant was proven more effective than an antidepressant alone for treating unresolved symptoms of depression. Unresolved symptoms are those that remain despite initial treatment with an antidepressant after at least 6 weeks.

SEROQUEL XR was studied in more than 900 patients with depression. The patients in those studies had been on an antidepressant for at least 6 weeks, but were still experiencing symptoms of depression.* Those antidepressants included:

  • Cymbalta® (duloxetine)
  • Effexor® (venlafaxine)
  • Paxil® (paroxetine)
  • Prozac® (fluoxetine)
  • Zoloft® (sertraline)
  • Lexapro® (escitalopram)
  • Celexa® (citalopram)
  • Wellbutrin® (bupropion)
  • Amitriptyline

Patients may have received generic versions of these products.

All patients continued to take their antidepressant. Some of the patients were given a sugar pill (placebo) to add to their antidepressant, and the other patients were given SEROQUEL XR to add to their antidepressant.

The results of the studies showed that many patients taking SEROQUEL XR with an antidepressant had greater improvement in their depressive symptoms* than patients taking a sugar pill with an antidepressant.

*The test that was used is called the MADRS, which is a standard rating scale that measures a patient's level of depression.

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Important Safety Information About SEROQUEL XR® (quetiapine)Read More +

  • Elderly patients with dementia-related psychosis (having lost touch with reality due to confusion and memory loss) treated with this type of medicine are at an increased risk of death, compared to placebo (sugar pill). SEROQUEL XR is not approved for treating these patients...
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US-25490; US-40332; US-45751 Last Updated 10/20

Important Safety Information About SEROQUEL XR® (quetiapine)


Elderly patients with dementia-related psychosis (having lost touch with reality due to confusion and memory loss) treated with this type of medicine are at an increased risk of death, compared to placebo (sugar pill). SEROQUEL XR is not approved for treating these patients.

Antidepressants have increased the risk of suicidal thoughts and actions in some children, teenagers, and young adults. Patients of all ages starting treatment should be watched closely for worsening of depression, suicidal thoughts or actions, unusual changes in behavior, agitation, and irritability. Patients, families, and caregivers should pay close attention to any changes, especially sudden changes in mood, behaviors, thoughts, or feelings. This is very important when an antidepressant medicine is started or when the dose is changed. These symptoms should be reported immediately to the doctor. SEROQUEL XR is not approved for children under the age of 10 years.

    Do not take SEROQUEL XR if you are allergic to quetiapine or any of the ingredients in SEROQUEL XR.

    Stroke that can lead to death can happen in elderly people with dementia who take medicines like SEROQUEL XR.

    Stop SEROQUEL XR and call your doctor right away if you have some or all of the following symptoms: high fever; excessive sweating; stiff muscles; confusion; changes in pulse, heart rate, and blood pressure. These may be symptoms of a rare, but very serious and potentially fatal, side effect called neuroleptic malignant syndrome (NMS).

    High blood sugar and diabetes have been reported with SEROQUEL XR and medicines like it. If you have diabetes or risk factors such as obesity or a family history of diabetes, your doctor should check your blood sugar before you start taking SEROQUEL XR and also during therapy. If you develop symptoms of high blood sugar or diabetes, such as excessive thirst or hunger, increased urination, or weakness, contact your doctor. Complications from diabetes can be serious and even life threatening.

    Increases in triglycerides and in LDL (bad) cholesterol and decreases in HDL (good) cholesterol have been reported with SEROQUEL XR. Your doctor should check your cholesterol levels before you start SEROQUEL XR and during therapy.

    Weight gain has been reported with SEROQUEL XR. Your doctor should check your weight regularly.

    Tell your doctor about any movements you cannot control in your face, tongue, or other body parts, as they may be signs of a serious condition called tardive dyskinesia (TD). TD may not go away, even if you stop taking SEROQUEL XR. TD may also start after you stop taking SEROQUEL XR.

    Other risks include feeling dizzy or lightheaded upon standing, falls (which may cause serious injuries), trouble swallowing, or decreases in white blood cells (which can be fatal). Fever, flu-like symptoms, or any other infection could be a result of a very low white blood cell count. Tell your healthcare provider as soon as possible if you experience any of these.

    Increases in blood pressure have been reported with SEROQUEL XR in children and adolescents. Your doctor should check blood pressure in children and adolescents before starting SEROQUEL XR and during therapy.

    Before starting treatment, tell your doctor about all prescription and nonprescription medicines you are taking. Also tell your doctor if you have or have had low white blood cell count, seizures, abnormal thyroid tests, high prolactin levels, heart or liver problems, trouble emptying your bladder, enlarged prostate, constipation, increased pressure inside your eyes, or cataracts. An eye exam for cataracts is recommended at the beginning of treatment and every 6 months thereafter.

    Since drowsiness has been reported with SEROQUEL XR, you should not participate in activities such as driving or operating machinery until you know that you can do so safely. Avoid becoming overheated or dehydrated while taking SEROQUEL XR. Do not drink alcohol while taking SEROQUEL XR.

    Tell your doctor if you are pregnant or intend to become pregnant. Avoid breastfeeding while taking SEROQUEL XR.

    The most common side effects in adults are drowsiness, dry mouth, constipation, dizziness, increased appetite, upset stomach, weight gain, fatigue, difficulty moving, and disturbance in speech or language, and stuffy nose. The most common side effects in children and adolescents are drowsiness, dizziness, fatigue, stuffy nose, increased appetite, upset stomach, vomiting, dry mouth, rapid heartbeat, and weight gain.

    Do not stop taking SEROQUEL XR without talking to your doctor. Stopping SEROQUEL XR suddenly may cause side effects.

This is not a complete summary of safety information. Please discuss the full Prescribing Information with your health care provider.

Approved Uses

SEROQUEL XR is a once-daily tablet approved in adults for (1) add-on treatment to antidepressants for patients with major depressive disorder (MDD) who did not have an adequate response to antidepressant therapy; (2) acute depressive episodes in bipolar disorder; (3) acute manic or mixed episodes in bipolar disorder alone or with lithium or divalproex; (4) long-term treatment of bipolar disorder with lithium or divalproex; and (5) schizophrenia. SEROQUEL XR is also approved for (6) acute manic episodes in bipolar disorder in children and adolescents ages 10-17 years; and (7) for schizophrenia in adolescents ages 13-17 years.

Please read the Medication Guide and full Prescribing Information, including Boxed WARNINGS.

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This site is intended for US customers only.

The information on this Web site should not take the place of talking with your doctor or health care professional. If you have any questions about SEROQUEL XR, talk to your doctor or pharmacist. Only you and your health care professional can decide if SEROQUEL XR is right for you.