Pramipexole ER 3mg Tablets

Manufacturer INGENUS Active Ingredient Pramipexole Extended-Release Tablets(pra mi PEKS ole) Pronunciation pra mi PEKS ole
It is used to treat Parkinson's disease.It may be given to you for other reasons. Talk with the doctor.
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Drug Class
Antiparkinsonian agent
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Pharmacologic Class
Non-ergot dopamine receptor agonist
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Pregnancy Category
Category C
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FDA Approved
Aug 2009
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Pramipexole ER is a medication used to treat Parkinson's disease and restless legs syndrome. It works by acting like a natural chemical in your brain called dopamine, which helps control movement. The 'ER' means extended-release, so it's designed to release the medicine slowly over time, allowing for once-daily dosing.
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How to Use This Medicine

Taking Your Medication

To use this medication correctly, follow your doctor's instructions and read all the information provided. Take your medication as directed, with or without food. If you experience stomach upset, taking it with food may help. Continue taking your medication even if you feel well, as instructed by your doctor or healthcare provider. Swallow the medication whole; do not chew, break, or crush it.

Storing and Disposing of Your Medication

Store your medication at room temperature, protected from light, and in a dry place. Avoid storing it in a bathroom. Keep all medications in a safe location, out of the reach of children and pets. Dispose of unused or expired medications properly. Do not flush them down the toilet or pour them down the drain unless instructed to do so. If you have questions about disposing of your medication, consult your pharmacist. You may also want to check if there are drug take-back programs in your area.

Missing a Dose

If you miss a dose, take it as soon as you remember. However, if it has been 12 hours or more since the missed dose, skip it and return to your regular schedule. Do not take two doses at the same time or take extra doses. If you miss taking your medication for several days in a row, contact your doctor before restarting your medication.
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Lifestyle & Tips

  • Take the tablet whole; do not crush, chew, or divide it.
  • Can be taken with or without food.
  • Avoid or limit alcohol consumption, as it can increase drowsiness and other side effects.
  • Be cautious when driving or operating machinery, especially when starting treatment or increasing the dose, due to the risk of sudden sleep attacks or extreme drowsiness.
  • Stand up slowly from a sitting or lying position to minimize dizziness or lightheadedness caused by a drop in blood pressure (orthostatic hypotension).
  • Report any new or unusual urges or behaviors (e.g., gambling, increased sexual urges, compulsive shopping, binge eating) to your doctor immediately.

Dosing & Administration

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Adult Dosing

Standard Dose: For Parkinson's Disease: Initial 0.375 mg once daily, titrated weekly in 0.375 mg increments to 1.5 mg/day, then by 0.75 mg increments to a maximum of 4.5 mg/day. 3mg is a common maintenance dose.
Dose Range: 0.375 - 4.5 mg

Condition-Specific Dosing:

Parkinson's Disease: Initial 0.375 mg once daily, titrated weekly based on response and tolerability. Typical maintenance range 1.5 mg to 4.5 mg once daily.
Restless Legs Syndrome: Initial 0.375 mg once daily, titrated weekly to a maximum of 0.75 mg once daily. (Note: 3mg is not a typical dose for RLS).
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Pediatric Dosing

Neonatal: Not established
Infant: Not established
Child: Not established
Adolescent: Not established
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Dose Adjustments

Renal Impairment:

Mild: CrCl 30-50 mL/min: Initial 0.375 mg every other day. Maximum dose 2.25 mg once daily.
Moderate: CrCl 15-29 mL/min: Initial 0.375 mg twice weekly. Maximum dose 1.5 mg once daily.
Severe: CrCl <15 mL/min or on hemodialysis: Not recommended due to insufficient data and significant accumulation.
Dialysis: Not recommended for patients on hemodialysis due to lack of data and significant accumulation.

Hepatic Impairment:

Mild: No adjustment needed.
Moderate: No adjustment needed.
Severe: No adjustment needed.

Pharmacology

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Mechanism of Action

Pramipexole is a non-ergot dopamine agonist with high affinity and selectivity for dopamine D2 and D3 receptors. It is believed to exert its therapeutic effects by stimulating dopamine receptors in the striatum and substantia nigra, thereby mimicking the effects of dopamine in the brain.
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Pharmacokinetics

Absorption:

Bioavailability: >90%
Tmax: 6 hours (extended-release)
FoodEffect: Food does not affect the extent of absorption, but Tmax may be prolonged by approximately 2 hours.

Distribution:

Vd: Approximately 400 L
ProteinBinding: <20%
CnssPenetration: Yes

Elimination:

HalfLife: 8-12 hours (increases with age and renal impairment, up to 30 hours in severe renal impairment)
Clearance: Approximately 30 L/hour (renal clearance)
ExcretionRoute: Renal (primarily unchanged drug)
Unchanged: Approximately 90%
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Pharmacodynamics

OnsetOfAction: Gradual, therapeutic effects are typically observed over several weeks of titration.
PeakEffect: Steady-state concentrations are achieved within 5-7 days of consistent dosing.
DurationOfAction: Approximately 24 hours (due to extended-release formulation).

Safety & Warnings

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Side Effects

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 immediately or seek emergency medical attention:

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
Strong, uncontrollable urges (e.g., eating, gambling, sex, or spending money)
Fever
Confusion
Muscle stiffness
Frequent urination
Severe dizziness or fainting
Excessive sweating
Shortness of breath, significant weight gain, or swelling in the arms or legs
Changes in vision
New or worsening trouble controlling body movements
Difficulty moving around
Hallucinations (seeing or hearing things that are not there)
Memory problems or loss
Muscle pain or weakness, dark urine, or difficulty passing urine
New or worsening mental, mood, or behavior changes

Some people have experienced sudden, uncontrollable sleepiness, including falling asleep while driving, eating, or talking, even if they felt alert beforehand. This can occur up to 1 year after starting the medication. If you experience excessive sleepiness or fall asleep during activities, do not drive or engage in tasks that require alertness. Contact your doctor immediately.

Additionally, some people have developed uncontrollable changes in posture, such as neck bending forward, bending forward at the waist, or tilting sideways while sitting, standing, or walking. These changes can occur several months after starting the medication or after a dose increase. If you notice any changes in your posture, contact your doctor.

Neuroleptic Malignant Syndrome (NMS): This is a rare but potentially life-threatening condition that can occur when medications like this one are stopped abruptly or the dose is lowered. If you experience any of the following symptoms, contact your doctor immediately:
Fever
Muscle cramps or stiffness
Dizziness
Severe headache
Confusion
Changes in thinking
Fast or abnormal heartbeat
Excessive sweating

Other Possible Side Effects

Most people do not experience significant side effects, but some may occur. If you notice any of the following side effects or any other symptoms that bother you or do not go away, contact your doctor:

Headache
Constipation
Diarrhea
Upset stomach
Decreased appetite
Trouble sleeping
Dizziness
Sleepiness
Fatigue
Weakness
Dry mouth
Strange or vivid dreams
Muscle spasms
Weight loss
Stuffy nose
Flu-like symptoms

This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
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Seek Immediate Medical Attention If You Experience:

  • Sudden onset of sleep during daily activities (even without warning)
  • Excessive daytime sleepiness
  • Hallucinations (seeing, hearing, or feeling things that are not real)
  • Dizziness or lightheadedness upon standing
  • Nausea or vomiting that is severe or persistent
  • Uncontrolled, involuntary movements (dyskinesia)
  • Unusual urges or behaviors (e.g., compulsive gambling, hypersexuality, compulsive shopping, binge eating)
  • Swelling in the legs or ankles
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Before Using This Medicine

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 allergic reaction you experienced, including any symptoms that occurred.
If you have kidney disease, as this may affect how your body processes the medication.
* If you are currently taking another medication that contains the same active ingredient as this drug, to avoid potential interactions or duplicate dosing.

This list is not exhaustive, and it is crucial to discuss all of your medications, including prescription and over-the-counter drugs, natural products, and vitamins, with your doctor and pharmacist. They will help you determine if it is safe to take this medication in combination with your other medications and health conditions.

Remember, do not start, stop, or change the dose of any medication without first consulting your doctor to ensure your safety and the effectiveness of your treatment.
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Precautions & Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.

When starting this medication, be cautious when driving or performing tasks that require alertness, as it may affect your ability to do so. To minimize the risk of dizziness or fainting, get up slowly from a sitting or lying position, and be careful when climbing stairs.

Follow your doctor's instructions for monitoring your blood pressure while taking this medication. Do not stop taking this medication without consulting your doctor, as this may lead to withdrawal symptoms. If you need to stop taking this medication, follow the tapering schedule recommended by your doctor. Immediately contact your doctor if you experience any of the following symptoms when reducing the dose or stopping the medication: fever, confusion, severe muscle stiffness, apathy, anxiety, depression, fatigue, sleep disturbances, sweating, or pain.

Avoid consuming alcohol while taking this medication. Before using marijuana, cannabis products, or prescription or over-the-counter medications that may cause drowsiness, consult with your doctor.

If you notice what appears to be a tablet in your stool, consult your doctor.

If you are 65 years or older, use this medication with caution, as you may be more susceptible to side effects.

If you are pregnant, planning to become pregnant, or breastfeeding, discuss the potential benefits and risks of this medication with your doctor to make an informed decision.
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Overdose Information

Overdose Symptoms:

  • Nausea
  • Vomiting
  • Dizziness
  • Lightheadedness
  • Orthostatic hypotension
  • Sweating
  • Bradycardia
  • Sedation
  • Dyskinetic movements
  • Agitation
  • Confusion
  • Hallucinations

What to Do:

There is no specific antidote for pramipexole overdose. Treatment should be symptomatic and supportive. Gastric lavage may be indicated if ingestion is recent. Maintain vital signs, and consider intravenous fluids for hypotension. Dopamine receptor antagonists (e.g., neuroleptics) may be used to counteract the dopaminergic effects, but caution is advised due to potential for worsening Parkinsonian symptoms. Dialysis is not effective. Call 1-800-222-1222 (Poison Control Center) immediately for advice.

Drug Interactions

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Major Interactions

  • Dopamine antagonists (e.g., antipsychotics like haloperidol, phenothiazines, metoclopramide): May reduce the efficacy of pramipexole.
  • CNS depressants (e.g., alcohol, sedatives, hypnotics): May potentiate the sedative effects of pramipexole.
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Moderate Interactions

  • Cimetidine, Ranitidine, Quinidine, Quinine, Diltiazem, Verapamil, Triamterene, Trimethoprim, Procainamide: May reduce the renal clearance of pramipexole, leading to increased plasma concentrations.
  • Levodopa: May increase the incidence of dyskinesia when co-administered with pramipexole.

Monitoring

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Baseline Monitoring

Renal function (CrCl)

Rationale: Pramipexole is primarily renally excreted; dosage adjustments are necessary in renal impairment.

Timing: Prior to initiation of therapy.

Blood pressure (sitting and standing)

Rationale: To assess for orthostatic hypotension, a common side effect.

Timing: Prior to initiation of therapy.

Psychiatric history (e.g., psychosis, impulse control disorders)

Rationale: To identify predisposition to psychiatric side effects.

Timing: Prior to initiation of therapy.

Ophthalmologic examination

Rationale: Although rare, retinal changes have been reported with dopamine agonists in animal studies.

Timing: Consider prior to initiation, especially in patients with pre-existing eye conditions.

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Routine Monitoring

Blood pressure (sitting and standing)

Frequency: Regularly, especially during dose titration and if symptoms of orthostatic hypotension occur.

Target: Maintain within patient's normal limits, monitor for significant drops.

Action Threshold: Symptomatic orthostatic hypotension (e.g., dizziness, lightheadedness) or sustained drop >20 mmHg systolic or >10 mmHg diastolic upon standing.

Mental status (e.g., hallucinations, delusions, impulse control disorders, somnolence)

Frequency: Regularly, especially during dose titration and with any behavioral changes.

Target: Absence of new or worsening psychiatric symptoms.

Action Threshold: Development of new or worsening hallucinations, delusions, compulsive behaviors (e.g., gambling, hypersexuality, compulsive shopping, binge eating), or excessive daytime sleepiness/sleep attacks.

Motor symptoms (e.g., dyskinesia, efficacy of PD/RLS control)

Frequency: Regularly, at each follow-up visit.

Target: Optimal symptom control with minimal side effects.

Action Threshold: Worsening of motor symptoms, development of troublesome dyskinesia, or loss of efficacy.

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Symptom Monitoring

  • Orthostatic hypotension (dizziness, lightheadedness, fainting upon standing)
  • Somnolence or sudden onset of sleep (sleep attacks)
  • Hallucinations (visual, auditory, tactile)
  • Delusions or paranoid ideation
  • Impulse control disorders (e.g., pathological gambling, hypersexuality, compulsive shopping, binge eating)
  • Dyskinesia (involuntary movements)
  • Nausea, constipation
  • Peripheral edema
  • Weight changes

Special Patient Groups

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Pregnancy

Pramipexole is classified as Pregnancy Category C. There are no adequate and well-controlled studies in pregnant women. Use during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Trimester-Specific Risks:

First Trimester: Animal studies have shown developmental toxicity (e.g., skeletal abnormalities, reduced fetal weight) at doses higher than human therapeutic doses. Risk in humans is unknown.
Second Trimester: Risk in humans is unknown.
Third Trimester: Risk in humans is unknown. Potential for inhibition of prolactin secretion, which could affect lactation.
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Lactation

Pramipexole is excreted into rat milk and is known to inhibit prolactin secretion in humans, which could inhibit lactation. It is generally not recommended for use in breastfeeding mothers due to potential for serious adverse effects in the infant and inhibition of milk production.

Infant Risk: Moderate risk (L3). Potential for central nervous system effects (e.g., somnolence, decreased feeding) in the infant. Risk of inhibition of lactation.
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Pediatric Use

The safety and effectiveness of pramipexole in pediatric patients have not been established. It is not approved for use in children.

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Geriatric Use

Pramipexole clearance is reduced in elderly patients due to age-related decline in renal function. Dosage adjustments are often necessary based on renal creatinine clearance. Elderly patients may also be more susceptible to side effects such as hallucinations, orthostatic hypotension, and somnolence.

Clinical Information

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Clinical Pearls

  • Pramipexole ER should be swallowed whole; crushing or chewing can lead to rapid release and potentially higher peak concentrations, increasing side effects.
  • Gradual dose titration is crucial to minimize side effects, especially orthostatic hypotension and somnolence.
  • Patients should be warned about the potential for sudden sleep attacks, even without prior warning, and advised to avoid driving or operating machinery if this occurs.
  • Monitor patients for the development of impulse control disorders (e.g., pathological gambling, hypersexuality, compulsive shopping, binge eating), which can occur with dopamine agonists. Dose reduction or discontinuation may be necessary.
  • Hallucinations are a common side effect, especially in elderly patients or those with advanced Parkinson's disease. They can be visual, auditory, or tactile.
  • Pramipexole is primarily renally excreted; careful dose adjustment is required in patients with renal impairment.
  • When discontinuing pramipexole, especially after high doses, a gradual taper is recommended to avoid withdrawal symptoms (e.g., akinesia, rigidity, anxiety, depression, fatigue, insomnia, sweating, pain).
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Alternative Therapies

  • Other non-ergot dopamine agonists (e.g., ropinirole, rotigotine)
  • Levodopa/carbidopa (e.g., Sinemet, Rytary, Duopa)
  • MAO-B inhibitors (e.g., selegiline, rasagiline, safinamide)
  • COMT inhibitors (e.g., entacapone, opicapone)
  • Amantadine
  • Anticholinergics (for tremor, e.g., trihexyphenidyl, benztropine)
  • Deep Brain Stimulation (DBS) for advanced Parkinson's disease
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Cost & Coverage

Average Cost: Varies widely, typically $100 - $500+ per 30 tablets (3mg ER)
Generic Available: Yes
Insurance Coverage: Often covered by most insurance plans, typically Tier 2 or Tier 3, depending on the plan and whether generic or brand is dispensed.
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General Drug Facts

If your symptoms or health issues persist or worsen, it is essential to contact your doctor promptly. To ensure safe and effective treatment, never share your medication with others or take someone else's medication. Some medications may come with an additional patient information leaflet, so it's a good idea 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 emergency medical attention. When seeking help, be prepared to provide details about the medication taken, the amount, and the time it occurred.