WARNING

Invega is a prescription medication that contains the active ingredient paliperidone, and it is primarily used to treat certain mental disorders such as schizophrenia and schizoaffective disorder. While Invega can be effective in managing these conditions, it is important to be aware of the potential risks associated with its use. Here are some of the risks:

• Side Effects: Invega may cause various side effects, including drowsiness, dizziness, blurred vision, weight gain, increased blood sugar levels, and constipation. Some individuals may experience more severe side effects, such as movement disorders like tardive dyskinesia.
• Metabolic Changes: Invega has been associated with metabolic changes, including weight gain, increased cholesterol levels, and increased blood sugar levels. These changes can potentially lead to long-term health issues like obesity, diabetes, and cardiovascular problems.
• Neurological Effects: Some individuals taking Invega may experience neurological effects, such as extrapyramidal symptoms, which can cause muscle stiffness, tremors, and abnormal movements. These symptoms can be similar to Parkinson’s disease.
• Hormonal Imbalances: Invega can affect the hormonal balance in the body, leading to changes in menstrual cycles in women and breast enlargement or milk production in both men and women.
• Cardiovascular Effects: In rare cases, Invega may increase the risk of heart-related complications, including irregular heart rhythms and a condition called orthostatic hypotension, which causes a sudden drop in blood pressure upon standing up.
• Allergic Reactions: Although rare, some individuals may experience allergic reactions to Invega, which can manifest as rash, itching, swelling, or difficulty breathing. Allergic reactions should be reported immediately to a healthcare professional.

It’s important to note that the benefits and risks of taking Invega can vary depending on individual factors and medical history. It is crucial to discuss any concerns or potential risks with a healthcare provider who can provide personalized advice and guidance.

Why is this medication prescribed?

Invega, which contains the active ingredient paliperidone, is primarily prescribed for the treatment of certain mental disorders, including schizophrenia and schizoaffective disorder. It belongs to a class of medications called atypical antipsychotics, which work by affecting the activity of certain neurotransmitters in the brain to help manage the symptoms of these conditions.

When prescribed for schizophrenia, Invega can help alleviate symptoms such as hallucinations (hearing or seeing things that are not there), delusions (false beliefs), disorganized thinking, and emotional withdrawal. In the case of schizoaffective disorder, it can help with both the symptoms of schizophrenia and the mood-related symptoms, such as depression or mania.

How should this medicine be used?

Here are some general guidelines on how Invega is typically used:

• Dosage: The specific dosage of Invega will vary depending on the individual’s condition, severity of symptoms, and response to the medication. It is essential to take the prescribed dose and not exceed or reduce it without consulting a healthcare professional.
• Administration: Invega is available in different forms, including oral tablets and extended-release injections. The oral tablets are usually taken once daily with or without food. Extended-release injections are administered by a healthcare professional, usually every few weeks.
• Timing: Take Invega at the same time each day to help establish a routine and ensure consistent blood levels of the medication. This can help optimize its effectiveness.
• Swallowing: If taking the oral tablet form, swallow it whole with water. Do not crush, chew, or break the tablet unless specifically instructed to do so by a healthcare professional, as it may alter the drug’s release mechanism.
• Compliance: It is important to continue taking Invega as prescribed, even if symptoms improve. Suddenly stopping the medication can lead to withdrawal symptoms or a relapse of symptoms. If there are concerns or difficulties with adherence to the prescribed regimen, it is important to discuss them with a healthcare professional for guidance.
• Regular Check-ups: While taking Invega, regular check-ups with the prescribing healthcare professional are usually necessary. These appointments allow monitoring of the medication’s effectiveness, assessment of any potential side effects or complications, and adjustment of the treatment plan if needed.

Other uses for this medicine

It may also have other off-label uses as determined by healthcare professionals. Some potential off-label uses of Invega include:

• Bipolar disorder: Invega may be prescribed to manage symptoms of bipolar disorder, such as mood swings and psychotic features.
• Off-label uses in children and adolescents: Invega may be used off-label to treat certain psychiatric conditions in children and adolescents, such as disruptive behavior disorders or autism-related irritability.
• Tourette’s syndrome: Invega may be prescribed off-label to manage symptoms of Tourette’s syndrome, including motor and vocal tics.

It’s important to note that off-label use should only be done under the guidance and supervision of a qualified healthcare professional, as they can assess the risks and benefits specific to an individual’s situation.

What special precautions should I follow?

As for precautions, there are several important considerations to keep in mind when taking Invega. Here are some special precautions associated with this medication:

• Allergic reactions: If you have a known allergy to paliperidone or any other ingredients in Invega, it is important to inform your healthcare provider before taking the medication.
• Neuroleptic malignant syndrome (NMS): Invega, like other antipsychotic medications, has been associated with NMS, a rare but potentially life-threatening condition characterized by high fever, muscle stiffness, confusion, and other symptoms. Contact your healthcare provider immediately if you experience any of these symptoms.
• Extrapyramidal symptoms (EPS): Invega may cause EPS, which include parkinsonism (tremors, rigidity), dystonia (muscle spasms), akathisia (restlessness), and tardive dyskinesia (involuntary movements). Your healthcare provider may monitor you for these symptoms and adjust the dosage accordingly.
• Hyperglycemia and diabetes: Invega has been associated with increased blood sugar levels and, in some cases, the development or worsening of diabetes. Regular monitoring of blood glucose levels is recommended, especially for individuals with pre-existing diabetes or risk factors for diabetes.
• Cardiovascular effects: Invega may cause changes in heart rhythm, including a condition called QT prolongation. It is important to inform your healthcare provider about any pre-existing heart conditions or medications you are taking that may affect heart rhythm.

These are just a few examples of precautions associated with Invega. It is crucial to consult with a healthcare professional who can provide personalized advice based on your specific medical history and condition.

What special dietary instructions should I follow?

Regarding dietary instructions, there are no specific dietary restrictions or instructions for Invega mentioned in the official prescribing information. However, it’s always a good idea to maintain a balanced and healthy diet while taking any medication. If you have any concerns about possible interactions between Invega and certain foods or beverages, it’s best to consult with your doctor or pharmacist.

What should I do if I forget a dose?

If you forget to take a dose of Invega, you should take it as soon as you remember. However, if it’s close to the time for your next scheduled dose, it’s generally recommended to skip the missed dose and continue with your regular dosing schedule. It’s important not to take a double dose to make up for the missed one, as this can increase the risk of side effects.

What side effects can this medication cause?

Like any medication, Invega can cause side effects. Some common side effects of Invega may include:

• Movement disorders: Invega can cause extrapyramidal symptoms such as muscle stiffness, tremors, restlessness, and involuntary movements. These symptoms are similar to Parkinson’s disease.
• Metabolic changes: Invega can lead to weight gain, increased blood sugar levels, and changes in cholesterol and lipid levels. These metabolic changes may increase the risk of developing conditions like diabetes and cardiovascular disease.
• Hormonal effects: In some cases, Invega can cause changes in hormone levels, leading to menstrual irregularities, breast enlargement, and production of milk in both males and females.
• Sedation and drowsiness: Invega may cause drowsiness or sedation, which can affect a person’s ability to perform tasks that require alertness.
• Orthostatic hypotension: Invega can cause a drop in blood pressure upon standing up, leading to dizziness and lightheadedness.
• Gastrointestinal effects: Common gastrointestinal side effects include constipation, nausea, and stomach discomfort.
• Sexual dysfunction: In some individuals, Invega may cause sexual side effects such as decreased libido, erectile dysfunction, or difficulties reaching orgasm.
• Sleep disturbances: Invega can disrupt sleep patterns and may cause insomnia or excessive sleepiness.
• Cognitive effects: Some people may experience cognitive changes, including difficulties with attention, memory, and problem-solving abilities.

It is important to note that not everyone will experience these side effects, and some individuals may experience different or fewer side effects. If you are prescribed Invega and are concerned about potential side effects, it is best to discuss your specific situation with your healthcare provider. They can provide you with more information and guidance based on your medical history and individual needs.

What should I know about storage and disposal of this medication?

Storage of Invega:

• Store Invega at room temperature, away from moisture and heat.
• Keep the medication in its original packaging until you are ready to take it.
• Ensure that Invega is kept out of the reach of children and pets.
• Do not store Invega in the bathroom or kitchen, as the humidity and temperature changes in these areas may affect its efficacy.

Disposal of Invega:

• It is important to properly dispose of unused or expired Invega to prevent accidental ingestion by others.
• Do not flush Invega down the toilet or pour it down the drain, as it can contaminate water sources.
• Check with your local pharmacy or healthcare provider for guidelines on how to safely dispose of medications in your area. They may have a take-back program or provide specific instructions for medication disposal.
• If no specific instructions are available, you can mix Invega with an undesirable substance (such as coffee grounds or kitty litter) in a sealed plastic bag before throwing it in the trash. This helps prevent accidental ingestion.

In case of emergency/overdose

• If you suspect an overdose or experience severe side effects after taking Invega, immediately contact emergency services or go to the nearest emergency room.
• Be sure to inform the medical professionals about the specific medication, dosage, and the time it was taken.
• If possible, bring the medication packaging or a remaining supply of Invega with you to the emergency room for reference.

What other information should I know?

• Always take Invega exactly as prescribed by your healthcare provider. Do not change the dosage or stop taking the medication without consulting them first.
• Inform your doctor about any other medications or supplements you are taking, as they can interact with Invega and potentially cause adverse effects.
• Invega may cause drowsiness, dizziness, or impaired thinking. Avoid activities that require mental alertness until you understand how the medication affects you.
• If you are pregnant, planning to become pregnant, or breastfeeding, discuss the potential risks and benefits of using Invega with your healthcare provider.