Risperidone ODT 1mg Tablets

Risperidone is a selective monoaminergic antagonist with high affinity for serotonin 5-HT2A and dopamine D2 receptors. It also antagonizes alpha1-adrenergic and H1 histaminergic receptors. Antagonism at 5-HT2A and D2 receptors is thought to be responsible for its antipsychotic effects. The 5-HT2A antagonism may modulate D2 antagonism, reducing extrapyramidal symptoms (EPS) compared to typical antipsychotics.

Urgent Side Effects: Seek Medical Help Right Away

Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek medical attention immediately:

Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin (with or without fever)
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of high blood sugar, including:
+ Confusion
+ Feeling sleepy
+ Unusual thirst or hunger
+ Passing urine more often
+ Flushing
+ Fast breathing
+ Breath that smells like fruit
Severe dizziness or fainting
Changes in behavior or mood
Shakiness, difficulty moving, or stiffness
Urination problems ( inability to pass urine or changes in urine output)
Trouble swallowing or speaking
Difficulty focusing
Seizures
Changes in vision
Shortness of breath
Drooling
Feeling extremely hot or cold
Hormonal changes, such as:
+ Enlarged breasts
+ Nipple discharge
+ Erectile dysfunction or changes in menstrual cycle
Sexual problems, including:
+ Decreased libido
+ Ejaculation problems
Prolonged or painful erections (lasting more than 4 hours), which can lead to permanent sexual dysfunction if left untreated
Neuroleptic malignant syndrome (NMS), a rare but potentially life-threatening condition, characterized by:
+ Fever
+ Muscle cramps or stiffness
+ Dizziness
+ Severe headache
+ Confusion
+ Changes in thinking or mental status
+ Rapid heartbeat
+ Abnormal heartbeat
+ Excessive sweating
Low white blood cell count, which can increase the risk of infection; if you have a history of low white blood cell count, inform your doctor and seek medical attention if you experience:
+ Fever
+ Chills
+ Sore throat
Tardive dyskinesia, a severe muscle disorder, which may cause:
+ Uncontrolled body movements
+ Tongue, face, mouth, or jaw problems (such as tongue sticking out, puffing cheeks, mouth puckering, or chewing)

Other Possible Side Effects

While many people may not experience any side effects or only minor ones, it's essential to be aware of the following potential side effects:

Weight gain
Restlessness
Dizziness, drowsiness, tiredness, or weakness
Anxiety
Gastrointestinal problems (constipation, diarrhea, stomach pain, upset stomach, or vomiting)
Heartburn
Dry mouth
Changes in appetite
Common cold symptoms
Headache
Sleep disturbances
* Back, muscle, arm, or leg pain

If you experience any of these side effects or have concerns, contact your doctor or seek medical attention. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.

Before Taking This Medication: Important Information to Share with Your Doctor

It is essential to inform your doctor about the following:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the symptoms you experienced as a result of the allergy.
Potential interactions with other medications or health conditions. This medication may affect or be affected by other drugs or health problems, so it is crucial to disclose all relevant information.

To ensure safe use, provide your doctor and pharmacist with a comprehensive list of:

All prescription and over-the-counter (OTC) medications you are taking
Natural products and vitamins you are using
* Any health problems you have

Carefully review your medications and health conditions to confirm that it is safe to take this medication in conjunction with them. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.

Important Information to Share with Your Healthcare Providers
Inform all of your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.

Precautions to Ensure Your Safety
Avoid driving and engaging in activities that require alertness until you understand how this medication affects you. To minimize the risk of dizziness or fainting, stand up slowly after sitting or lying down, and be cautious when climbing stairs.

Potential Effects and Monitoring
It may take several weeks to experience the full effects of this medication. Be aware that medications like this one can increase the risk of high blood sugar, diabetes, high cholesterol, and weight gain, which may contribute to heart and brain blood vessel disease. Monitor your blood sugar levels as directed by your doctor, and undergo regular blood tests as advised by your doctor.

Substance Interactions and Precautions
Avoid consuming alcohol while taking this medication. Before using marijuana, cannabis, or prescription or over-the-counter medications that may cause drowsiness, consult with your doctor. In hot weather or during physical activity, drink plenty of fluids to prevent dehydration.

Potential Side Effects and Risks
This medication may cause dizziness, drowsiness, and impaired balance, which can increase the risk of falls and related injuries. If you have phenylketonuria (PKU), consult with your doctor, as some products contain phenylalanine.

Special Considerations for Older Adults
Older adults with dementia who take medications like this one have a higher risk of stroke, which can be fatal. This medication is not approved for treating dementia-related mental health issues. If you are 65 or older, use this medication with caution, as you may be more susceptible to side effects.

Pregnancy, Fertility, and Breastfeeding
This medication may affect fertility, but this effect is reversible when the medication is discontinued. If you have questions or concerns, discuss them with your doctor. Inform your doctor if you are pregnant, plan to become pregnant, or are breastfeeding, as you will need to weigh the benefits and risks to you and your baby. Taking this medication during the third trimester of pregnancy may cause side effects or withdrawal symptoms in the newborn.

• CNS depressants (e.g., opioids, benzodiazepines, alcohol): Increased sedation.
• QTc-prolonging drugs (e.g., Class IA and III antiarrhythmics, moxifloxacin, thioridazine): Increased risk of arrhythmias.
• Dopamine agonists (e.g., levodopa, bromocriptine): Antagonism of effects.
• Strong CYP2D6 inhibitors (e.g., fluoxetine, paroxetine, quinidine): Significantly increase risperidone plasma levels.
• Strong CYP3A4 inducers (e.g., carbamazepine, rifampin, phenytoin): Significantly decrease risperidone plasma levels.

• Antihypertensives: Additive hypotensive effects.
• Diuretics (especially in elderly with dementia): Increased risk of orthostatic hypotension and dehydration.
• Drugs causing electrolyte imbalance (e.g., hypokalemia, hypomagnesemia): Increased risk of QTc prolongation.
• Valproate: Increased risperidone levels (mechanism unclear, possibly displacement from protein binding).

• Cimetidine, ranitidine: Minor increase in risperidone levels.
• Clozapine: May increase risperidone levels.

• Sedation/drowsiness
• Dizziness/lightheadedness (especially upon standing)
• Muscle stiffness/tremor/restlessness (EPS)
• Weight gain
• Increased thirst/urination (signs of hyperglycemia)
• Changes in menstrual cycle/galactorrhea (hyperprolactinemia)
• Blurred vision
• Constipation
• Dry mouth
• Sexual dysfunction
• Agitation/anxiety (paradoxical effect)

Category C. Studies in animals have shown adverse effects on the fetus. There are no adequate and well-controlled studies in pregnant women. Use only if the potential benefit justifies the potential risk to the fetus. Neonates exposed to antipsychotic drugs during the third trimester are at risk for extrapyramidal and/or withdrawal symptoms following delivery.

Risperidone and its active metabolite (9-hydroxyrisperidone) are excreted into human milk. The relative infant dose (RID) is estimated to be low (around 1-2%). Monitor the infant for sedation, poor feeding, and developmental milestones. L3 (Moderately Safe).

Approved for irritability associated with autistic disorder (5-16 years), schizophrenia (13-17 years), and bipolar mania (10-17 years). Dosing is weight-based for autism and age-based for schizophrenia/bipolar mania. Children and adolescents may be more susceptible to certain side effects like weight gain, hyperprolactinemia, and EPS. Close monitoring is essential.

Elderly patients, especially those with dementia-related psychosis, are at increased risk of death when treated with antipsychotics (Black Box Warning). Increased risk of cerebrovascular adverse events (stroke, TIA). More susceptible to orthostatic hypotension and EPS. Start with lower doses and titrate slowly. Monitor for falls, sedation, and metabolic changes.

• Risperidone ODT can be taken with or without water. Place on the tongue, it will dissolve rapidly.
• The ODT formulation is useful for patients who have difficulty swallowing pills or who may be non-adherent with conventional tablets.
• High doses (>6 mg/day) are associated with a higher risk of EPS and hyperprolactinemia without significant additional efficacy for schizophrenia.
• Monitor for metabolic side effects (weight gain, dyslipidemia, hyperglycemia) regularly, as these are common with atypical antipsychotics.
• Hyperprolactinemia can lead to sexual dysfunction, amenorrhea, galactorrhea, and potentially long-term bone density issues. Consider monitoring prolactin if symptomatic.
• Orthostatic hypotension is common, especially during initial titration. Advise patients to rise slowly and stay hydrated.
• Be vigilant for signs of Neuroleptic Malignant Syndrome (NMS), a rare but potentially fatal adverse reaction.

• Other atypical antipsychotics (e.g., olanzapine, quetiapine, aripiprazole, ziprasidone, lurasidone, cariprazine, brexpiprazole)
• Typical antipsychotics (e.g., haloperidol, chlorpromazine) - generally less preferred due to higher EPS risk.
• Mood stabilizers (e.g., lithium, valproate, lamotrigine) for bipolar disorder.
• SSRIs/SNRIs for mood/anxiety symptoms (if comorbid or primary indication is not psychosis/mania).
• Behavioral therapies and psychosocial interventions.

If your symptoms or health issues persist or worsen, it's essential to contact your doctor for further guidance. To ensure your safety, never share your medication with others or take someone else's medication. Some medications may come with an additional patient information leaflet, so be sure to check with your pharmacist for more information. If you have any questions or concerns about your medication, don't hesitate to reach out to your doctor, nurse, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek medical attention. When seeking help, be prepared to provide details about the medication taken, the amount, and the time it happened.