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Quser XL 400 Tablet

Quetiapine (400mg)
Genuine
Authenticity Assured
Prescription
required
Quser XL 400 Tablet is used in the treatment of schizophrenia (a mental disorder that can result in hallucinations or delusions and also adversely affects a person’s ability to think and behave) and mania. It is also used to treat bipolar disorders.

Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 16 Jul 2026 | 01:03 AM (IST)
₹346 MRP ₹384.3810% off 
 
 
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Quser XL 400 Tablet is currently sold out
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Qutipin SR 400 Tablet
₹355₹394
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Quser XL 400 Tablet
Quser XL 400 Tablet
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Same composition
Qutipin SR 400 Tablet
Qutipin SR 400 Tablet
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General Information

The content is shown in English
Quser XL 400 Tablet image
Quser XL 400 Tablet image
Quser XL 400 Tablet image
Quser XL 400 Tablet image

Product introduction

Quser XL 400 Tablet may be taken without food or with light meals. However, it is advised to take it at the same time each day as this helps to maintain a consistent level of medicine in the body. Take this in the dose and duration as advised by your doctor and if you have missed a dose, take it as soon as you remember. It is important that this medication is not stopped suddenly without talking to your doctor as it may worsen your symptoms. However, discontinue this medicine immediately if you experience Neuroleptic malignant syndrome (NMS), characterized by fever, muscle rigidity, and altered consciousness or seizures.

Some common side effects of this medicine include decreased hemoglobin levels in the blood, increased triglycerides level in blood, decreased cholesterol level in blood, headache, extrapyramidal symptoms, dry mouth, and withdrawal symptoms. Initially, this medicine may cause a sudden drop in blood pressure when you change positions, so it is better to rise slowly if you have been sitting or lying down. It also causes dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. This medicine may increase your weight but, modifying your lifestyle by having a healthy diet and exercising regularly can reduce this side effect.

You should be cautious while using this medicine as it may increase the risk of developing diabetes, so it is better to monitor glucose regularly. Inform your doctor if you develop any unusual changes in mood or behavior, new or worsening depression, or suicidal thoughts while taking this medicine.

Uses of Quser Tablet PR

Benefits of Quser Tablet PR

Depression
Depression is a condition that affects mood, thoughts, and daily functioning, often leading to persistent sadness and loss of interest. Quser XL 400 Tablet helps improve mood stability and emotional balance, which can reduce feelings of sadness, low energy, and lack of motivation. This supports better daily functioning and overall mental well-being.
Stress urinary incontinence
Stress urinary incontinence causes unintentional urine leakage during activities like coughing, sneezing, or exercising. Quser XL 400 Tablet helps improve control over bladder function, which reduces leakage episodes and supports better confidence and quality of life during daily activities.
Diabetic nerve pain
Diabetic nerve pain occurs due to long-term high blood sugar levels damaging nerves, leading to burning, tingling, or shooting pain. Quser XL 400 Tablet helps reduce nerve-related pain and discomfort, improving sleep, mobility, and overall comfort in people with diabetic neuropathy.

Side effects of Quser Tablet PR

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Quser
  • Constipation
  • Dizziness
  • High blood pressure
  • Sleepiness
  • Fatigue
  • Orthostatic hypotension (sudden lowering of blood pressure on standing)
  • Dyslipidemia
  • Dryness in mouth

How to use Quser Tablet PR

Use it as advised by your doctor or check the label for directions before use. Quser XL 400 Tablet is to be taken on an empty stomach.

How Quser Tablet PR works

Quser XL 400 Tablet works by increasing the levels of chemical messengers (serotonin and noradrenaline), natural substances in the brain that help maintain mental balance and stop the movement of pain signals in the brain.

All substitutes for Quser XL 400 Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

  • You have been prescribed Quser XL 400 Tablet for the treatment of schizophrenia and mania.
  • It is less likely to cause heart problems and movement disorders than other antipsychotics.
  • It may take 4 to 6 weeks to see treatment effects. Keep taking it as prescribed.
  • Use caution while driving or doing anything that requires concentration as Quser XL 400 Tablet can cause dizziness and sleepiness.
  • To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down.
  • It may increase your weight, blood sugar and cholesterol. Eat healthy, exercise regularly and monitor your blood levels regularly.
  • Inform your doctor if you develop any unusual changes in mood or behavior, new or worsening depression, or suicidal thoughts or behavior.
  • Do not stop taking it without talking to your doctor first as it may cause worsening of symptoms.

Safety advice

Alcohol

Alcohol

UNSAFE
Do not drink alcohol while you are taking this medicine. Quser XL 400 Tablet may cause excessive drowsiness when taken with alcohol.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Quser XL 400 Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding

Breast feeding

CAUTION
Quser XL 400 Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.
Driving

Driving

CONSULT YOUR DOCTOR
It is not known whether Quser XL 400 Tablet alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.
Kidney

Kidney

CONSULT YOUR DOCTOR
There is limited data available on the use of Quser XL 400 Tablet in patients with kidney disease. Please consult your doctor.
Liver

Liver

CAUTION
Quser XL 400 Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.
All

Interaction with drugs

Taking Quser with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Life-threatening

Domperidone (Oral Route)

Do not consume Domperidone with Quetiapine.
Life-threatening

Dronedarone (Oral Route)

Do not consume Dronedarone with Quetiapine. If concurrent use is essential, watch out for symptoms of Quetiapine side effects such as blurred vision, sleepiness, headache, constipation, nausea, dizziness, faintness or fatigue and consult your doctor if you experience them. They may adjust the dose of Quetiapine accordingly. Factors such as old age, chronic heart issues, or low potassium levels may more frequently cause disturbance in heart rhythm, and your doctor may consider ECG monitoring in their presence.
Severe

Amiodarone (Oral Route)

Factors such as old age, chronic heart issues, or low potassium levels may more frequently cause disturbance in heart rhythm, and your doctor may consider ECG monitoring in their presence.
Severe

Pimozide (Oral Route)

Factors such as old age, chronic heart issues, or low potassium levels may more frequently cause disturbance in heart rhythm, and your doctor may consider ECG monitoring in their presence.
Severe

Hydroxyzine (Oral Route)

Do not consume Hydroxyzine with Quetiapine.

Frequently asked questions

Quser XL 400 Tablet helps to correct chemical imbalances in the brain. It acts on various chemical messengers in the brain like dopamine and serotonin. It prevents the excessive activity of dopamine, helping to treat symptoms of schizophrenia and mania.
Quser XL 400 Tablet can make you feel sleepy, but it is not used as a sleeping pill. Quser XL 400 Tablet is approved for the treatment of symptoms of schizophrenia. It prevents as well as treats episodes of mania and depression in bipolar disorder. It is also used with other medicines to treat depression.
You may start seeing an improvement within a week of starting Quser XL 400 Tablet but full benefits may take about 4-6 weeks to appear.
Quser XL 400 Tablet has not been approved for the treatment of anxiety; however, your doctor may prescribe it for anxiety. Some studies suggest its use in post-traumatic stress disorder, generalized anxiety disorder, and anxiety associated with mood disorders.
Quser XL 400 Tablet can cause drowsiness. So, do not drive, operate machinery or do anything dangerous until you know how Quser XL 400 Tablet affects you. Do not drink alcohol while taking Quser XL 400 Tablet as it may worsen the drowsiness. Avoid getting dehydrated or over-exposure to heat.
No, you should not stop taking Quser XL 400 Tablet without consulting your doctor. Suddenly stopping it may cause nausea, vomiting, headache, diarrhea, dizziness, irritability and inability to sleep. If you feel better, consult your doctor who will gradually reduce the dose before completely stopping it.
Yes, weight gain is a common side effect of Quser XL 400 Tablet. If you feel you are gaining weight, consult your doctor or a nutritionist who will suggest you a diet and some exercise to help you manage your weight.
Take Quser XL 400 Tablet exactly as advised by your doctor. Do not split, chew or crush the tablets. Swallow the tablet whole with a glass of water. Do not take it with food. It is advised to take this medicine for at least one hour before a meal or at bedtime. Do not take grapefruit while taking Quser XL 400 Tablet as it may affect the working of this medicine.
Quser XL 400 Tablet helps to correct chemical imbalances in the brain. It acts on various chemical messengers in the brain like dopamine and serotonin. It prevents the excessive activity of dopamine, helping to treat symptoms of schizophrenia and mania.
Quser XL 400 Tablet can make you feel sleepy, but it is not used as a sleeping pill. Quser XL 400 Tablet is approved for the treatment of symptoms of schizophrenia. It prevents as well as treats episodes of mania and depression in bipolar disorder. It is also used with other medicines to treat depression.
You may start seeing an improvement within a week of starting Quser XL 400 Tablet but full benefits may take about 4-6 weeks to appear.
Quser XL 400 Tablet has not been approved for the treatment of anxiety; however, your doctor may prescribe it for anxiety. Some studies suggest its use in post-traumatic stress disorder, generalized anxiety disorder, and anxiety associated with mood disorders.
Quser XL 400 Tablet can cause drowsiness. So, do not drive, operate machinery or do anything dangerous until you know how Quser XL 400 Tablet affects you. Do not drink alcohol while taking Quser XL 400 Tablet as it may worsen the drowsiness. Avoid getting dehydrated or over-exposure to heat.
No, you should not stop taking Quser XL 400 Tablet without consulting your doctor. Suddenly stopping it may cause nausea, vomiting, headache, diarrhea, dizziness, irritability and inability to sleep. If you feel better, consult your doctor who will gradually reduce the dose before completely stopping it.
Yes, weight gain is a common side effect of Quser XL 400 Tablet. If you feel you are gaining weight, consult your doctor or a nutritionist who will suggest you a diet and some exercise to help you manage your weight.
Take Quser XL 400 Tablet exactly as advised by your doctor. Do not split, chew or crush the tablets. Swallow the tablet whole with a glass of water. Do not take it with food. It is advised to take this medicine for at least one hour before a meal or at bedtime. Do not take grapefruit while taking Quser XL 400 Tablet as it may affect the working of this medicine.

Fact Box

Chemical Class

Dibenzothiazepines

Habit Forming

No

Therapeutic Class

NEURO CNS

Action Class

Atypical Antipsychotics

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Icon Life Sciences
Address: Icon Life Sciences, Div. Of Mesmer Pharmaceuticals, No.202/6, Lane In.30, Phase-II, IDA, Cherlapally, Hyderabad, 500 051 AP

Vendor Details

Country of origin: India
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