Kventiax tablets


  • Active Ingredient: Quetiapine
  • 300 mg, 200 mg, 100 mg, 50 mg
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What is Kventiax?

The active ingredient of Kventiax brand is quetiapine. Quetiapine is an antipsychotic medicine. It works by changing the actions of chemicals in the brain.

Used for

Kventiax is used to treat diseases such as: Bipolar Disorder, Borderline Personality Disorder, Depression, Generalized Anxiety Disorder, Insomnia, Intermittent Explosive Disorder, Major Depressive Disorder, Obsessive Compulsive Disorder, Paranoid Disorder, Post Traumatic Stress Disorder, Schizoaffective Disorder, Schizophrenia, Tourette's Syndrome.

Side Effect

Possible side effects of Kventiax include: uncontrolled movements of the arms and legs; restlessness; unusual facial expressions; sticking out of the tongue; Abnormal vision; unusual bleeding or bruising.

How to Buy Kventiax tablets online?

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  • You can take the immediate-release tablet with or without food. You should take the extended-release tablet without food or with a light meal (about 300 calories).
  • Take this drug at the time(s) recommended by your doctor.
  • You can cut or crush Kventiax immediate-release tablets. However, you can’t cut or crush Kventiax extended-release tablets.

Other warnings

Kventiax is a prescription drug. It comes in the form of a tablet you take by mouth. There are two versions of the tablet. The immediate-release version is released into the bloodstream right away. The extended-release version is slowly released into your bloodstream over time.

Kventiax is available as the brand-name drugs Seroquel (immediate-release tablet) and Seroquel XR (extended-release tablet). Both forms are also available as generic drugs. Generic drugs usually cost less than the brand-name version. In some cases, they may not be available in every strength or form as the brand-name drug.

Kventiax may be used as part of a combination therapy. This means you may need to take it with other medications.

Post Marketing Experience

The following adverse reactions were identified during post approval of SEROQUEL. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Adverse reactions reported since market introduction which were temporally related to Kventiax therapy include anaphylactic reaction, cardiomyopathy, drug reaction with eosinophilia and systemic symptoms (DRESS), hyponatremia, myocarditis, nocturnal enuresis, pancreatitis, retrograde amnesia, rhabdomyolysis, syndrome of inappropriate antidiuretic hormone secretion (SIADH), Stevens-Johnson syndrome (SJS), and toxic epidermal necrolysis (TEN).

2 Adjusted for gender.

Read the entire FDA prescribing information for Seroquel (Kventiax Fumarate)

What is the dosage for Kventiax?

  • Immediate release Kventiax usually is taken two or three times daily.
  • Extended release Kventiax is taken once daily.
  • The dose usually is increased slowly over several days or weeks to achieve the desired effect.
  • Kventiax can be taken with or without food.
  • The initial dose for bipolar disorder is 50 mg twice daily (100 mg/day) of immediate release Kventiax. The dose can be increased by 100 mg/day to a daily dose of 400 mg/day. Most patients respond to 400-800 mg/day. Doses greater than 800 mg/d have not been studied. The starting dose is 300 mg once daily and the target dose is 400-800 mg once daily when using extended release tablets.
  • The initial dose for schizophrenia is 25 mg twice daily (50 mg/day) of immediate release tablets. The dose can be increased by 25-50 mg two or three times daily. The target dose is 300-400 mg/day in two or three doses. Patients respond to 150-750 mg/day, and doses greater than 800 mg/day have not been evaluated. The starting dose is 300 mg once daily and the target dose is 400-800 mg once daily when using extended release tablets.
  • The dose range for treating major depression is 150-300 mg/day of extended release tablets. The starting does is 50 mg in the evening for 2 days increasing to 150 mg in the evening.

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Dosage for major depression in people already taking antidepressants

Extended-release tablets

Adult dosage (ages 18–64 years)

  • Typical starting dosage:
    • Days 1 and 2: 50 mg once daily.
    • Day 3: 150 mg once daily.
  • Dosage increases: Your doctor may change your dosage, within the recommended range of 150–300 mg once per day.
  • Maximum dosage: 300 mg once daily.

Senior dosage (ages 65 years and older)

Your doctor may start you on a lowered dose or a different dosing schedule. This can help keep levels of this drug from building up too much in your body. Your doctor may start you at a dosage of 50 mg daily. They may later increase it, adding 50 mg to your daily dose. The dosage may be increased at a slower rate, and a lower total daily dose may be used to lessen the risk of side effects.

Child dosage (ages 0–17 years)

It hasn’t been confirmed that Kventiax is safe and effective to use for this purpose in children younger than 18 years.


Kventiax can make your body less able to manage your temperature. This can cause your temperature to increase too much, leading to a condition called hyperthermia. Symptoms can include hot skin, excessive sweating, fast heartbeat, rapid breathing, and even seizures. To help prevent this, do the following during your treatment with this drug:

  • Avoid getting overheated or dehydrated. Don’t over-exercise.
  • During hot weather, stay inside in a cool place if possible.
  • Stay out of the sun. Don’t wear heavy clothing.
  • Drink plenty of water.

How to use Kventiax FUMARATE

Read the Medication Guide and, if available, the Patient Information Leaflet provided by your pharmacist before you start using Kventiax and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth as directed by your doctor, usually 2 or 3 times daily with or without food. For the treatment of depression associated with bipolar disorder, take this medication by mouth as directed by your doctor, usually once daily at bedtime.

The dosage is based on your medical condition, response to treatment, and other medications you may be taking. Be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully. Take this medication regularly to get the most benefit from it. To help you remember, take it at the same times each day.

Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase.

It is important to continue taking this medication as prescribed even if you feel well. Do not stop taking this medication without consulting your doctor. Some conditions may become worse when this drug is suddenly stopped. Also, you may experience symptoms such as trouble sleeping, nausea, headache, diarrhea, irritability. Your dose may need to be gradually decreased to reduce side effects. Report any new or worsening symptoms right away.

Tell your doctor if your condition persists or worsens.

How should this medicine be used?

Kventiax comes as a tablet and an extended-release tablet to take by mouth. The tablets are usually taken one to three times a day, with or without food. The extended-release tablets are usually taken once a day in the evening without food or with a light meal. Take Kventiax at around the same time(s) every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Kventiax exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Swallow Kventiax extended-release tablets whole; do not split, chew, or crush them.

Your doctor will probably start you on a low dose of Kventiax and gradually increase your dose during the first week of your treatment. Ask your doctor or pharmacist if you have any questions about the amount of medication you should take each day at the beginning of your treatment.

If you do not take Kventiax for one week or longer, you should call your doctor before you start taking the medication again. Your doctor will probably tell you to start taking a low dose of the medication and gradually increase your dose as you did when you first started taking Kventiax.

Kventiax may help control your symptoms but will not cure your condition. Continue to take Kventiax even if you feel well. Do not stop taking Kventiax without talking to your doctor. If you suddenly stop taking Kventiax, you may experience withdrawal symptoms such as nausea, vomiting, and difficulty falling asleep or staying asleep. Your doctor will probably want to decrease your dose gradually.

Why it’s used

Kventiax oral tablet is used to treat the symptoms of schizophrenia, bipolar disorder, or depression.

Kventiax can be used to treat symptoms in adults who have depressive episodes or manic episodes caused by bipolar I disorder. For these cases, it can be used alone or with the drugs lithium or divalproex. It can also be used with lithium or divalproex for long-term treatment of bipolar I disorder. Kventiax can be used in children ages 10–17 years to treat manic episodes caused by bipolar I disorder.

For major depression, Kventiax is used as an add-on treatment for people already taking antidepressant drugs. It’s used when your doctor decides that one antidepressant alone is not enough to treat your depression.

In therapy for schizophrenia (up to 6 weeks), the most commonly observed adverse reactions associated with the use of Kventiax in adolescents (incidence of 5% or greater and Kventiax incidence at least twice that for placebo) were somnolence (34%), dizziness (12%), dry mouth (7%), tachycardia ( 7%).

In bipolar mania therapy (up to 3 weeks) the most commonly observed adverse reactions associated with the use of Kventiax in children and adolescents (incidence of 5% or greater and Kventiax incidence at least twice that for placebo) were somnolence (53%), dizziness (18%), fatigue (11%), increased appetite (9%), nausea (8%), vomiting (8%), tachycardia (7%), dry mouth (7%), and weight increased (6%).

In an acute (8-week) SEROQUEL XR trial in children and adolescents (10-17 years of age) with bipolar depression, in which efficacy was not established, the most commonly observed adverse reactions associated with the use of SEROQUEL XR (incidence of 5% or greater and at least twice that for placebo) were dizziness 7%, diarrhea 5%, fatigue 5% and nausea 5%.

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Kventiax is available as standard-release tablets (which are generally taken twice daily) and also as modified-release tablets (which are taken once daily). Modified-release tablets have the letters 'XL' after the brand name - these release Kventiax more slowly and evenly throughout the course of the day.

What are some other side effects of Kventiax Tablets?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

  • Dizziness.
  • Headache.
  • Feeling nervous and excitable.
  • Constipation.
  • Dry mouth.
  • Feeling sleepy.
  • More hungry.
  • Weight gain.
  • Upset stomach or throwing up.
  • Feeling tired or weak.
  • Belly pain.
  • Back pain.
  • Stuffy nose.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.

What do I need to tell my doctor BEFORE I take Kventiax Tablets?

  • If you have an allergy to Kventiax or any other part of this medicine (Kventiax tablets).
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If you have any of these health problems: Low potassium or magnesium levels.
  • If you have ever had a long QT on ECG or other heartbeat that is not normal.
  • If you are taking any drugs that can cause a certain type of heartbeat that is not normal (prolonged QT interval). There are many drugs that can do this. Ask your doctor or pharmacist if you are not sure.
  • If you are breast-feeding or plan to breast-feed.

This is not a list of all drugs or health problems that interact with this medicine (Kventiax tablets).

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this medicine (Kventiax tablets) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.


  • Store Kventiax at room temperature between 59°F and 86°F (15°C and 30°C).
  • Keep this drug away from light.
  • Don’t store this medication in moist or damp areas, such as bathrooms.

Drug forms and strengths

Generic: Kventiax

  • Form: immediate-release oral tablet
  • Strengths: 25 mg, 50 mg, 100 mg, 200 mg, 300 mg, and 400 mg
  • Form: extended-release oral tablet
  • Strengths: 50 mg, 150 mg, 200 mg, 300 mg, and 400 mg

Brand: Seroquel

  • Form: immediate-release oral tablet
  • Strengths: 25 mg, 50 mg, 100 mg, 200 mg, 300 mg, and 400 mg

Brand: Seroquel XR

  • Form: extended-release oral tablet
  • Strengths: 50 mg, 150 mg, 200 mg, 300 mg, and 400 mg

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