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Rexulti (Oral)

Generic Name: brexpiprazole (Oral route)


Oral route(Tablet)

Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Brexpiprazole is not approved for the treatment of patients with dementia-related psychosis. Increased risk of suicidal thinking and behavior was found in children, adolescents, and young adults taking antidepressants. Monitor for worsening and emergence of suicidal thoughts and behaviors .

Commonly used brand name(s)

In the U.S.

  • Rexulti

Available Dosage Forms:

  • Tablet

Therapeutic Class: Antipsychotic

Uses For Rexulti

Brexpiprazole is used to treat mental conditions, such as depression and schizophrenia. Brexpiprazole works in the brain to change how certain chemicals affect patients. It is an antipsychotic agent.

This medicine is available only with your doctor's prescription.

Before Using Rexulti

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:


Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.


Appropriate studies have not been performed on the relationship of age to the effects of brexpiprazole in children. Safety and efficacy have not been established.


Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of aripiprazole in elderly patients. This medicine should not be used to treat behavioral problems in elderly patients who have dementia.

Breast Feeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Interactions with Medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

  • Blood vessel disease or
  • Dehydration or
  • Heart attack or stroke, history of or
  • Heart disease or
  • Heart failure, history of or
  • Heart rhythm problems, history of or
  • Hypotension (low blood pressure) or
  • Hypovolemia (decrease in blood volume) or
  • Ischemic heart disease, history of or
  • Trouble swallowing—Use with caution. May cause side effects to become worse.
  • Diabetes, or family history of or
  • Hyperglycemia (high blood sugar)—This medicine may raise your blood sugar levels.
  • Dyslipidemia (high cholesterol or triglyceride levels) or
  • Neuroleptic malignant syndrome (NMS), history of or
  • Seizures, history of—Use with caution. May make these conditions worse.
  • Kidney disease, moderate to severe or
  • Liver disease, moderate to severe—Use with caution. The effects may be increased because of slower removal of the medicine from the body.

Proper Use of Rexulti

Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. To do so may increase the chance of side effects.

This medicine should come with a Medication Guide. Read and follow the instructions carefully. Ask your doctor if you have any questions.

You may take this medicine with or without food.


The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage form (tablets):
    • For depression:
      • Adults—At first, 0.5 or 1 milligram (mg) once a day. Your doctor may increase your dose as needed and tolerated. However, the dose is usually not more than 3 mg per day.
      • Children—Use and dose must be determined by your doctor.
    • For schizophrenia
      • Adults—At first, 1 milligram (mg) once a day on Days 1 to 4. Your doctor may increase your dose to 2 mg on Days 5 to 7, and then to 4 mg on Day 8 as tolerated. However, the dose is usually not more than 4 mg per day.
      • Children—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.


Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Precautions While Using Rexulti

It is very important that your doctor check your progress at regular visits to allow for changes in your dose and to make sure this medicine is working properly. Blood and urine tests may be needed to check for any unwanted effects.

For some patients, this medicine can increase thoughts of suicide. Tell your doctor right away if you start to feel more depressed and have thoughts about hurting yourself. Report any unusual thoughts or behaviors that trouble you, especially if they are new or are getting worse quickly. Make sure the doctor knows if you have trouble sleeping, get upset easily, have a big increase in energy, or start to act reckless. Also tell the doctor if you have sudden or strong feelings, such as feeling nervous, angry, restless, violent, or scared. Let the doctor know if you or anyone in your family has bipolar disorder (manic-depressive illness) or has tried to commit suicide.

Check with your doctor right away if you have any of the following symptoms while using this medicine: convulsions (seizures), difficulty with breathing, a fast heartbeat, a high fever, high or low blood pressure, increased sweating, loss of bladder control, severe muscle stiffness, unusually pale skin, or tiredness. These could be symptoms of a serious condition called neuroleptic malignant syndrome (NMS).

This medicine may cause tardive dyskinesia (a movement disorder) especially in elderly women. Check with your doctor right away if you have any of the following symptoms while taking this medicine: lip smacking or puckering, puffing of the cheeks, rapid or worm-like movements of the tongue, uncontrolled chewing movements, or uncontrolled movements of the arms and legs.

This medicine may increase the amount of sugar in your blood. Check with your doctor right away if you have increased thirst or increased urination. If you have diabetes, you may notice a change in the results of your urine or blood sugar tests. If you have any questions, check with your doctor.

This medicine may increase your weight. Your doctor may need to check your weight on a regular basis while you are using this medicine.

This medicine can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. If you can, avoid people with infections. Check with your doctor immediately if you think you are getting an infection or if you get a fever or chills, cough or hoarseness, lower back or side pain, or painful or difficult urination.

Dizziness, lightheadedness, or fainting may occur, especially when you get up from a lying or sitting position. Getting up slowly may help. If this problem continues or gets worse, check with your doctor.

This medicine may make it more difficult for your body to cool down. It might reduce how much you sweat. Your body could get too hot if you do not sweat enough. If your body gets too hot, you might feel dizzy, weak, tired, or confused. You might have an upset stomach or vomit. Call your doctor if drinking cool water and moving away from the heat does not cool you down.

This medicine may make you dizzy or drowsy. Do not drive or do anything that could be dangerous until you know how this medicine affects you. Stand or sit up slowly if you feel lightheaded or dizzy.

Do not change the dose or stop taking this medicine without checking first with your doctor.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines) and herbal (eg, St. John's wort) or vitamin supplements.

Rexulti Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

  • Chills
  • cold sweats
  • confusion
  • dizziness, faintness, or lightheadedness when getting up from lying or sitting position
  • fainting
Incidence not known
  • Black, tarry stools
  • changes in behavior
  • chest pain
  • convulsions
  • cough or hoarseness
  • difficulty breathing
  • fast heartbeat
  • fever with or without chills
  • general feeling of tiredness or weakness
  • high fever
  • inability to move eyes
  • increased blinking or spasms of the eyelid
  • increased sweating
  • lip smacking or puckering
  • loss of bladder control
  • lower back or side pain
  • painful or difficult urination
  • puffing of the cheeks
  • rapid or worm-like movements of the tongue
  • severe muscle stiffness
  • sore throat
  • sores, ulcers, or white spots on the lips or in the mouth
  • sticking out of the tongue
  • swollen glands
  • thoughts of killing oneself
  • trouble breathing, speaking, or swallowing
  • uncontrolled chewing movements
  • uncontrolled movements of the arms and legs
  • uncontrolled twisting movements of the neck, trunk, arms, or legs
  • unusual bleeding or bruising
  • unusual facial expressions
  • unusual tiredness or weakness
  • unusually pale skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common
  • Acid or sour stomach
  • belching
  • headache
  • heartburn
  • inability to sit still
  • indigestion
  • muscle aches
  • need to keep moving
  • restlessness
  • sleepiness or unusual drowsiness
  • sore throat
  • stomach discomfort, upset, or pain
  • stuffy or runny nose
  • weight gain
Less common
  • Bloated or full feeling
  • bloody or cloudy urine
  • blurred vision
  • diarrhea
  • difficulty having a bowel movement (stool)
  • difficulty with moving
  • dizziness
  • dry mouth
  • excess air or gas in the stomach or intestines
  • fear or nervousness
  • frequent urge to urinate
  • increased appetite
  • increased sweating
  • joint pain
  • muscle aching or cramping
  • muscle pains or stiffness
  • passing gas
  • shakiness in the legs, arms, hands, or feet
  • swollen joints
  • trouble sleeping

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

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