NB-Risperidone: Uses, Side Effects and Dosage

ABOUT THIS MEDICATION

What the medication is used for:

NB-Risperidone belongs to a group of medicines called antipsychotic drugs.

Use in Schizophrenia: NB-Risperidone is used to treat the symptoms of schizophrenia and related psychotic disorders, which may include hallucinations (hearing or seeing things that are not there), delusions, unusual suspiciousness, emotional withdrawal. Patients suffering from schizophrenia may also feel depressed, anxious or tense.

Use in Severe Dementia related to Alzheimers disease: NB-Risperidone may also be used for short-term treatment in dementia related to Alzheimer’s disease, specifically to control aggression or psychotic symptoms (such as believing things that are not true or seeing, feeling or hearing things that are not there) when there is a risk of harm to self or others.

Use in Acute Mania Associated with Bipolar Disorder: NB-Risperidone may be used for the acute treatment of manic episodes associated with bipolar disorder. Signs and symptoms of bipolar mania include but are not limited to:

feeling invincible or all powerful, inflated self-esteem, racing thoughts, easily lose your train of thought, overreaction to what you see or hear, misinterpretation of events, speeded-up activity, talking very quickly, talking too loudly, or talking more than usual, decreased need for sleep, and poor judgment.

The doctor has prescribed NB-Risperidone, to help relieve the symptoms that are bothering you/the patient you are caring for. Although NB-Risperidone cannot cure the illness, it can keep the symptoms under control and reduce the risk of relapse as you/ the patient you are caring for continues treatment.

What it does:

Antipsychotic medications affect the chemicals that allow communication between nerve cells (neurotransmitters). These chemicals are called dopamine and serotonin. Exactly how NB-Risperidone works is unknown. However it seems to readjust the balance of dopamine and serotonin.

When it should not be used:

Do not take/give NB-Risperidone if an allergic reaction to the medicine or any of the nonmedicinal ingredients of the product has occurred.

Symptoms of an allergic reaction may include: itching, skin rash, swelling of the face, lips or tongue, shortness of breath. If you experience any of these symptoms / if these symptoms are experienced by the patient you are caring for, your doctor/the treating physician should be contacted immediately.

The safety and efficacy of NB-Risperidone in children under the age of 18 have not been established.

What the medicinal ingredient is:

Risperidone

What the nonmedicinal ingredients are:

The tablets contain the following nonmedicinal ingredients: lactose, microcrystalline cellulose, hydroxypropyl methylcellulose, magnesium stearate, colloidal anhydrous silica and titanium dioxide.

The 0.25 and 0.5 mg strength contain in addition: crosscarmellose sodium and stearic acid

The 1 mg, 2 mg, 3 mg, 4 mg strength contain in addition: cornstarch and polyethylene glycol,

The 0.25 mg tablets also contain: yellow ferric oxide. The 0.5 mg tablets also contain: red ferric oxide. The 2 mg tablets also contain: yellow ferric oxide and red ferric oxide.

The 3 mg tablets also contain: quinoline yellow and aluminum oxide.

The 4 mg tablets also contain: indigo carmine, quinoline yellow and aluminum oxide.

What dosage forms it comes in:

NB-Risperidone tablets are available in 6 strengths, 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, and 4 mg.

WARNINGS AND PRECAUTIONS

Serious Warnings and Precautions

Increased Risk of Death in Elderly People with Dementia. Medicines like NB-Risperidone can raise the risk of death in elderly people who have dementia.

BEFORE you use NB-Risperidone, talk to your doctor or pharmacist if you/the patient you are caring for:

• have/has serious allergic reactions to other medications,

  including paliperidone;

• have/has a history of stroke, mini-strokes, high

  cholesterol or high blood pressure. Medicines like NB-Risperidone can raise the risk of death in elderly people who have dementia;

• have/has neuroleptic malignant syndrome (a disorder

  that causes you to have high fever and stiffness in your muscles);

• have/has tardive dyskinesia (a disorder that causes you

  to have uncontrolled and repeated movements of the tongue, face or other body parts);

• have/has or are at risk for diabetes or high blood sugar

  or a family history of diabetes;

• are/is pregnant, think you may be pregnant or planning

  to become pregnant;

• are/is breast-feeding or planning to breast-feed;
• have or have had prolonged and/or painful erections;
• have/has ever had blackouts or seizures;

• have/has a history of kidney or liver problems; •

  • have/has a history of:

    • problems with the heart and/or blood vessels;
    • any problems with the way your heart beats;
• are being treated for high blood pressure;
• are taking any medications that affect how your heart beats;
• are/is prone to hypotension (low blood pressure), have or have had a heart disease or heart disease treatment that makes you more likely to have low blood pressure or feeling dizzy or faint when you stand up from lying or sitting positions;

• are at risk for developing blood clots. Risk factors include:

  • a family history of blood clots
  • being over the age of 65
  • smoking
  • being overweight

  • having a recent major surgery (such as hip or knee replacement)

    • not being able to move due to air travel or other reasons
    • taking oral birth control ("The Pill'');
    • have had low white blood cell counts in your blood. Let your doctor know right away if you develop a fever or infection while being treated with NB-Risperidone;
    • have high levels of cholesterol or fats (triglycerides) in your blood;

    • have a history of or are at risk of:

      • sleep apnea (a sleep disorder where your breathing is interrupted during sleep)
      • sleep walking
      • sleep-related eating disorder;
    • have/has Parkinson's disease;
    • are/is taking or planning to take any other medicines (prescription, over-the-counter medicines, or natural health products);
    • drink/drinks alcoholic beverages or use/uses drugs;
    • have/has or have had/has had breast cancer;
    • have/has pituitary tumours;
    • suffer/suffers from Alzheimer’s Disease;
    • suffer/suffers from Lewy body dementia;
    • are/is feeling thirsty and unwell;
    • exercise/exercises strenuously. This kind of medication may interfere with your body’s ability to adjust to heat. You should avoid becoming overheated or dehydrated (for example with vigorous exercise or exposure to extreme heat) while taking risperidone;

    • are/is planning to have an operation on the eye(s). During surgery to treat the cloudiness of the lens in your eye(s) (known as cataract surgery):

      • the pupil (the black circle in the middle of your eye) may not increase in size as needed;
      • the iris (the coloured part of the eye) may become floppy during surgery. This may lead to eye damage.

Tell your eye doctor you are taking this medicine.

Elderly Patients with Dementia

• Studies in elderly patients with dementia have shown that risperidone taken by itself or with furosemide (a “water pill”) is associated with a higher rate of death (see Serious Warnings and Precautions Box).

Tell your doctor if you are taking furosemide. This drug can be used to treat:

• high blood pressure
• some heart problems
• swelling of parts of the body caused by the build-up of too much fluid.
• In elderly patients with dementia:
• a sudden change in mental state

• sudden weakness or numbness of the face,

  arms or legs, especially on one side of the body

• slurred speech
• vision problems

have been seen.

If any of these should occur, even for a short period of time, seek medical attention right away.

If you are taking blood pressure medication: Low blood pressure can result from using NB-Risperidone together with medications used to treat high blood pressure. If you need to use both NB-Risperidone and medications used to reduce blood pressure, consult your doctor.

Effects on newborns: You should not take NB-Risperidone while you are pregnant or if you are planning on becoming pregnant unless you have talked to your doctor about it.

If you took NB-Risperidone at any time while you were pregnant or if you took it before you became pregnant, the following symptoms may happen in your newborn baby:

• shaking
• stiffness in their muscles and/or weakness
• sleepiness
• agitation
• breathing problems
• difficulty feeding

Get medical help right away if your newborn baby has any of these symptoms.

In some cases, babies born to a mother taking risperidone during pregnancy have experienced symptoms that are severe and require the newborn to be hospitalized.

Other cautions

Driving and using machines: Do not drive or operate machinery until you know how you respond to NB-Risperidone. Some people experience drowsiness or blurred vision while taking NB

-Risperidone.

Falls: Feeling sleepy, a fall in blood pressure when you stand up from sitting or lying down, vision and speech problems have been reported with the use of antipsychotic drugs. This can lead to falls that may cause fractures or other fall related injuries. Certain medications, diseases or conditions can make this worse.

Weight gain: Weight gain has been seen in patients who are taking antipsychotic drugs. Your doctor may monitor your body weight when you are taking NB-Risperidone.

Blood tests: Your doctor should do blood tests before you start taking NB-Risperidone. They will check your blood sugar levels, and for those with certain risk factors, the level of white blood cells in your blood. Your doctor should continue to check your blood for as long as you are being treated with NB-Risperidone.

It is important for the doctor to have all the above information before prescribing treatment and dosage. This list should be carefully reviewed by you/the caregiver and discussed with the doctor.

INTERACTIONS WITH THIS MEDICATION

Inform all doctors, dentists and pharmacists who are treating you that you are taking NB-Risperidone.

Inform them if you are taking or are planning on taking any other medicine, including other prescription or over-the-counter medications and natural health products. They will tell you which medicines you can take with NB-Risperidone.

NB-Risperidone can increase the effect of alcohol and medicines that reduce the ability to react (e.g. “tranquillizers”, narcotic painkillers, certain antihistamines, certain antidepressants). It is recommended that you DO NOT drink alcohol when you are taking NB-Risperidone. You should only take these other medicines when they have been prescribed by your doctor.

Some medicines, when they are taken together with NB-Risperidone, may increase or decrease the level of risperidone in your blood. Therefore, tell your doctor if you start and/or stop taking any of the below medicines, since your doctor may need to change the dose:

• Dopamine agonists, e.g. levodopa (a drug used to treat Parkinson’s disease), as these may decrease the effect of NB-Risperidone. Also, risperidone can affect how drugs used to treat Parkinson’s disease work.
• Phenothiazines and some heart medications (e.g., medication for high blood pressure, antiarrhythmics, or beta-blockers), as these may interact with NB-Risperidone to cause your blood pressure to drop too low.
• NB-Risperidone should be used with caution when taking medications that may change the electrical activity of the heart (QT prolongation), such as but not
• disorders, allergies, other antipsychotics, antidepressants, water tablets or other medicines affecting body salts (sodium, potassium, magnesium).
• Carbamazepine and topiramate (drugs used to treat seizures), as these may change the effect of NB-Risperidone.
• PROZAC^® (fluoxetine), PAXIL^® (paroxetine) (antidepressants) and CLOZARIL^® (clozapine), as these may increase the level of NB-Risperidone in your blood.
• LASIX^® (furosemide): Studies in elderly patients with dementia have shown that taking risperidone with furosemide, a medicine which is sometimes used to treat high blood pressure, some heart problems, or to treat swelling of parts of the body caused by the build-up of too much fluid, is associated with an increased rate of death (see WARNINGS AND PRECAUTIONS).

• Itraconazole and ketoconazole, medicines for treating

  fungal infections.

• Certain medicines used in the treatment of HIV/AIDS,

  such as NORVIR® (ritonavir).

• Verapamil, a medicine used to treat high blood pressure

  and/or abnormal heart rhythm.

• Sertraline and fluvoxamine, medicines used to treat

  depression and other psychiatric disorders.

• Rifampicin, a medicine for treating some infections

• NB-Risperidone should be used with caution with

  medicines that increase the activity of the central nervous system (psychostimulants such as methylphenidate).

PROPER USE OF THIS MEDICATION

Usual Dose:

• It is very important that you take/give NB-Risperidone

  the way the doctor has prescribed it.

• The doctor has decided on the best dosage for you/the

  patient you are caring for based on individual needs. Dosage may be increased or decreased depending on the response.

• You may take/give NB-Risperidone together with meals

  or between meals. Once a regular dose has been established, the total amount can be taken once a day, or divided into two intakes, one in the morning and one in the evening.

• Try to take/give NB-Risperidone at the same time each

  day.

• NB-Risperidone tablets should be swallowed with some

  water or other liquid.

• It is important that you keep taking/giving NB-

  Risperidone even after your/the symptoms have improved or disappeared. Do not change or stop taking/giving NB-Risperidone without consulting the doctor.

  DO NOT give NB-Risperidone to anyone else. The doctor has prescribed it for you/the patient you are caring for.

Overdose:

If you think you have taken too much NB-Risperidone, contact your healthcare professional, hospital emergency department or regional Poison Control Centre immediately, even if there are no symptoms.

In overdose, one or more of the following may occur:

• Feeling sedated
• Feeling drowsy or sleepy
• Unusual movements of the face, body, arms or legs (such as excessive trembling or muscle stiffness)
• A fast heart rate
• Irregular heartbeat or other symptoms of an irregular heartbeat, such as lightheadedness or fainting
• Abnormal electrical conduction in the heart (QT prolongation). Symptoms may include lightheadedness or fainting.
• Low blood pressure that may include feeling dizzy or lightheaded when standing up.
• Low blood sodium levels. Symptoms may include headache or confusion

•

• Low blood potassium levels. Symptoms may include muscle cramps or feeling weak.
• Seizures.

Missed Dose:

If you miss a dose, try not to miss any more. DO NOT TAKE/GIVE TWO DOSES AT ONCE.

SIDE EFFECTS AND WHAT TO DO ABOUT THEM

These are not all the possible side effects you may feel when taking NB-Risperidone. If you experience any side effects not listed here, contact your healthcare professional

Side effects that may occur very commonly are difficulty falling or staying asleep, trembling, decreased motor function or activity such as slight muscle stiffness, increased saliva and/or drooling, feeling sleepy or less alert, and headache.

Side effects that may occur commonly include: pneumonia, infections of eye, infections of ear, urinary tract infection, feeling like you have the flu, sleep disorder, depression, anxiety, irritability, dizziness, uncontrollable movements of the face or body, rigid muscles, slowness of movement and muscle stiffness or spasm, tremor, a sensation of tingling, prickling, or numbness of skin, blurry vision, faster heart rate, high blood pressure, abdominal pain, nausea/vomiting, constipation, diarrhea, indigestion, dry mouth, muscle spasms, loss of urine, swelling of the body, arms or legs, weakness, and fatigue.

NB-Risperidone can raise your levels of a hormone called "prolactin". This is measured with a blood test. Symptoms may include:

• In men:

  • swelling in the breast
  • difficulty in getting or maintaining an erection or other sexual dysfunction

• In women:

  • discomfort in the breasts
  • leaking of milk from the breasts (even if not pregnant)
  • missing your menstrual period or other problems with your cycle

If you have high levels of prolactin and a condition called hypogonadism you may be at an increased risk of breaking a bone due to osteroporosis. This occurs in both men and women.

Uncommon side effects may include: anemia, increased cholesterol in your blood, weight loss, loss of appetite resulting in malnutrition and low body weight, mania, a restless urge to move parts of your body, concentration difficulties, nightmares, itching, flushing, a sensation of tingling, pricking, or numbness of skin, muscle weakness, thirst, infection of the breathing passages, bladder infection, infection of the skin, fungal infection of the nails, crackly lung sounds, wheezing, breathing passage disorder, chills, vaginal discharge, joint swelling or stiffness, ringing in your ears, sensation of spinning (vertigo), being unresponsive to what is going on around you, difficulty with your voice, changes in taste, difficult or painful urination, bowel incontinence, gas, stomach or intestinal infection, low blood pressure, heartbeat irregularities, changes in body temperature, and increased liver transaminases in your blood.

High blood sugar, diabetes mellitus or worsening of diabetes have been reported. See your doctor if you experience symptoms such as excessive thirst or urination

NB-Risperidone may cause sudden dizziness or lightheadedness (symptoms of postural hypotension). You/the patient you are caring for should not rise rapidly after having been sitting or lying for prolonged periods, especially when you start taking NB-Risperidone.

In rare cases, the following may happen: sugar in the urine, high blood triglycerides (a fat), chapped lips, eye rolling, glaucoma (increased pressure within the eyeball), eyelid margin crusting, swollen tongue, coldness in arms and legs, and low blood sugar.

Lack of bowel muscle movement that causes blockage may occur very rarely.

Only

if

severe

In all cases

Common

Skin rash on its own ✓ Dystonia: twisting

movements that you cannot control, and can affect posture or the face,

including eyes, mouth, tongue or jaw

✓

Uncommon

Seizure (i.e., loss of

consciousness with

uncontrollable shaking)

✓

Decreased White Blood Cells: infections, fatigue, fever, aches, pains and flu-like symptoms

✓

Tardive Dyskinesia: Muscle twitching or

abnormal movements of the face or tongue or other parts of your body

✓

Severe Allergic Reaction: fever, itching, skin rash, hives, swelling of the mouth, face, lips, throat or tongue, difficulty

swallowing or breathing, shortness of breath and sometimes a drop in blood pressure (amounting to an “anaphylactic reaction”)

✓

Strokes and Transient Ischemic Attacks: Sudden ✓ SERIOUS SIDE EFFECTS, HOW OFTEN THEY OCCUR AND WHAT TO DO ABOUT THEM Symptom/effect Talk with your

doctor or

pharmacist

Stop taking drug and seek immediate emergency medical

attention Only

if

severe

In all

cases

change in mental state or

sudden weakness or

numbness of the face, arms

or legs, especially on one

side, slurred speech or

vision problems, even for a

short period of time

Dysphagia: difficulty

swallowing that can cause

food or liquid to get into

your lungs

✓

signs of a serious allergic

reaction

Catatonia : unable to move

or respond while awake ✓

If you have a troublesome symptoms or side effect that is not listed here or becomes bad enough to interfere with your daily activities, talk to your healthcare professional.

HOW TO STORE IT

Store NB-Risperidone in its original package. NB-Risperidone tablets should be stored between 15 - 30^oC. Protect from light and moisture.

Keep NB-Risperidone out of reach and sight of children.

The expiry date for NB-Risperidone is printed on the package. Do not use the medicine in the package after this date.

REPORTING SIDE EFFECTS

You can report any suspected side effects associated with the use of health products to Health Canada by:

• Visiting the Web page on Adverse Reaction

  Reporting (https://www.canada.ca/en/health-canada/services/drugs-health-products/medeffect-canada/adverse-reaction-reporting/consumer-side-effect-reporting-form.html ) for information on how to report online, by mail or by fax; or

• Calling toll-free at 1-866-234-2345.

NOTE: Contact your health professional if you need information about how to manage your side effects. The Canada Vigilance Program does not provide medical advice.

MORE INFORMATION

If you want to know more about NB-Risperidone:

• Talk to your healthcare professional
• Find the full product monograph that is prepared for healthcare professionals and includes this Consumer Information by visiting the Health Canada website (https://health-products.canada.ca/dpd-bdpp/index-eng.jsp); the manufacturer NB Pharma Inc. website www.nbpharmainc.com or by calling at 1-855-662-1814.

or by written request at:

2700 Jean-Perrin, Ste 208

Québec, Canada

G2C 1S9

Last revised: FEB 07, 2025