PALIPERIDONE

COMMON BRAND NAME(S): Invega

GENERIC NAME(S): PALIPERIDONE

 

Description: Paliperidone is an atypical antipsychotic that is thought to affect certain substances in the brain.  This blocks the serotonin, dopamine, histamine, and adrenergic receptors in the Central Nervous System.

Pharmacokinetics:

Absorption: Bioavailability: 28%. Time to peak plasma concentration: Approx 24 hr (oral); approx 13 days (IM).

Distribution: Plasma protein binding: 74% (mainly to α1-acid glycoprotein and albumin).

Metabolism: Hepatic by CYP2D6 and CYP3A4 isoenzymes; minor metabolism via dealkylation, hydroxylation, dehydrogenation and benzisoxazole scission.

Excretion: Via urine (80%) and faeces (11%). Elimination half-life: Approx 23 hr (oral); 25-49 days (IM).

This medication is used to treat certain mental/mood disorders (such as schizophrenia, schizoaffective disorder). This medication can decrease hallucinations and help you to think more clearly and positively about yourself, feel less agitated, and take a more active part in everyday life.

OTHER USES:

This medication may also be used in combination with other medication to treat depression.

How to use paliperidone

Take this medication by mouth with or without food as directed by your doctor, usually once daily. Swallow the tablets whole with liquid. Do not crush or chew the tablets. Doing so can release all of the drug at once, increasing the risk of side effects.

Paliperidone is also given as an injection into the muscle at your doctor’s office, hospital, or clinic. Be sure to keep all doctor appointments while using paliperidone. Contact your health care provider if you have any questions.

The dosage is based on your age, medical condition, and response to treatment.

Take this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day. 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.

Tell your doctor if your condition persists or worsens.

There may be a slightly increased risk of serious, possibly fatal side effects (such as stroke, heart failure, fast/irregular heartbeat, pneumonia) when this medication is used by older adults with dementia. This medication is not approved for the treatment of dementia-related behavior problems. Discuss the risks and benefits of this medication, as well as other effective and possibly safer treatments for dementia-related behavior problems, with the doctor.

If you are using paliperidone in combination with other medication to treat depression, also carefully read the drug information for the other medication.

Pregnancy Risk: Category C (Risk cannot be ruled out)

 

Side effects:

Drowsiness, dizziness, lightheadedness, drooling, stomach/abdominal pain, weight gain, or tiredness may occur. If any of these side effects persist or worsen, tell your doctor promptly.

To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

An empty tablet shell may appear in your stool. This effect is harmless because your body has already absorbed the medication.

Tell your doctor right away if you have any serious side effects, including:

  • difficulty swallowing,
  • muscle spasms,
  • shaking (tremor),
  • mental/mood changes (such as restlessness),
  • signs of infection (such as fever, persistent sore throat).

This drug may infrequently make your blood sugar level rise, which can cause or worsen diabetes. Tell your doctor immediately if you develop symptoms of high blood sugar, such as increased thirst and urination. If you already have diabetes, be sure to check your blood sugars regularly. Your doctor may need to adjust your diabetes medication, exercise program, or diet.

This drug may also cause significant weight gain and a rise in your blood cholesterol (or triglyceride) levels. These effects, along with diabetes, may increase your risk for developing heart disease. Discuss the risks and benefits of treatment with your doctor. (See also Notes section.)

Paliperidone may rarely cause a condition known as tardive dyskinesia. In some cases, this condition may be permanent. Tell your doctor immediately if you develop any unusual/uncontrolled movements (especially of the face, lips, mouth, tongue, arms, or legs).

This medication may increase a certain natural substance (prolactin) made by your body. For females, this increase in prolactin may result in unwanted breast milk, missed/stopped periods, or difficulty becoming pregnant. For males, it may result in decreased sexual ability, inability to produce sperm, or enlarged breasts. If you develop any of these symptoms, tell your doctor immediately.

Get medical help right away if you have any very serious side effects, including: severe dizziness, fainting, seizures.

This medication may rarely cause a very serious condition called neuroleptic malignant syndrome (NMS). Get medical help right away if you have any of the following symptoms: fever, muscle stiffness/pain/tenderness/weakness, severe tiredness, severe confusion, sweating, fast/irregular heartbeat, dark urine, change in the amount of urine.

Rarely, males may have a painful or prolonged erection lasting 4 or more hours. If this occurs, stop using this drug and get medical help right away, or permanent problems could occur.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Before taking paliperidone, tell your doctor or pharmacist if you are allergic to it; or to risperidone; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, kidney disease, seizures, low white blood cell count, Parkinson’s disease, dementia, esophagus/stomach/intestinal movement or blockage disorders (such as difficulty swallowing, peritonitis, cystic fibrosis, Meckel’s diverticulum), certain eye problems (cataracts, glaucoma), personal or family history of diabetes, high cholesterol/triglyceride levels, heart disease.

Paliperidone may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.

The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using paliperidone, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).

Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/”water pills”) or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using paliperidone safely.

This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages.

Before having surgery (including cataract/glaucoma eye surgery), tell your doctor or dentist if you are taking or have ever taken this medication, and about all the other products you use (including prescription drugs, nonprescription drugs, and herbal products).

This medication may make you sweat less, making you more likely to get heat stroke. Avoid doing things that may cause you to overheat, such as hard work or exercise in hot weather, or using hot tubs. When the weather is hot, drink a lot of fluids and dress lightly. If you overheat, quickly look for a place to cool down and rest. Get medical help right away if you have a fever that does not go away, mental/mood changes, headache, or dizziness.

Older adults may be more sensitive to the side effects of this drug, especially dizziness, lightheadedness, and QT prolongation (see above).

During pregnancy, this medication should be used only when clearly needed. Babies born to mothers who have used this drug during the last 3 months of pregnancy may infrequently develop symptoms including muscle stiffness or shakiness, drowsiness, feeding/breathing difficulties, or constant crying. If you notice any of these symptoms in your newborn especially during their first month, tell the doctor right away.

Since untreated mental/mood problems (such as schizophrenia, schizoaffective disorders, depression) can be a serious condition, do not stop taking this medication unless directed by your doctor. If you are planning pregnancy, become pregnant, or think you may be pregnant, immediately discuss with your doctor the benefits and risks of using this medication during pregnancy.

This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.

 

Interactions:

A product that may interact with this drug is: metoclopramide.

Many drugs besides paliperidone may affect the heart rhythm (QT prolongation), including amiodarone, chlorpromazine, moxifloxacin, quinidine, sotalol, procainamide, thioridazine, among others.

Tell your doctor or pharmacist if you are taking other products that cause drowsiness including alcohol, antihistamines (such as cetirizine, diphenhydramine), drugs for sleep or anxiety (such as alprazolam, diazepam, zolpidem), muscle relaxants, and narcotic pain relievers (such as codeine).

Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain ingredients that cause drowsiness. Ask your pharmacist about using those products safely.

If overdose is suspected, contact a poison control center or emergency room immediately.

Notes

Do not share this medication with others.

Laboratory and/or medical tests (such as blood sugar, weight, blood pressure, blood cholesterol/triglyceride levels) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

Missed Dose

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

Storage

Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

 

Brands:

Available Brands:

Invega [ Johnson & Johnson ]                                                                            Invega Sustenna [ Johnson & Johnson ]

Related Articles

ULTRAVIST

UsesWarningsSide EffectsPrecautionsOverdose & BrandsUses Ultravist is used in the following conditions: Radiographic Imaging: Iopromide injection is utilized to enhance the [...]

ULTRAMOX

UsesWarningsSide EffectsPrecautionsOverdose & BrandsUses Ultramox is used in the following conditions: Respiratory Infections: Amoxicillin is often used to treat respiratory [...]

ULTRALIV

UsesWarningsSide EffectsPrecautionsOverdose & BrandsUses Ultraliv is used in the following conditions: Carnitine Orotate: Carnitine orotate is a combination of L-carnitine [...]