Mirapex 1mg Tablets

Manufacturer BOEHRINGER Active Ingredient Pramipexole Tablets(pra mi PEKS ole) Pronunciation pra mi PEKS ole
It is used to treat Parkinson's disease.It is used to treat restless leg syndrome.
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Drug Class
Antiparkinsonian agent
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Pharmacologic Class
Dopamine receptor agonist (non-ergot)
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Pregnancy Category
Category C
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FDA Approved
Jul 1997
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Pramipexole 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. In Parkinson's, it helps improve symptoms like tremor, stiffness, and slow movement. In Restless Legs Syndrome, it helps reduce the uncomfortable urge to move your legs.
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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 it causes stomach upset, take it with food to help minimize this side effect. Continue taking your medication as prescribed by your doctor or healthcare provider, even if you're feeling well.

For restless leg syndrome, take your medication 2 to 3 hours before bedtime. If your symptoms worsen or start earlier in the day, inform your doctor.

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 have access to drug take-back programs in your area.

Missing a Dose

If you miss a dose, skip it and resume your regular dosing schedule. Do not take two doses at the same time or 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 exactly as prescribed; do not stop suddenly without consulting your doctor, as this can lead to withdrawal symptoms.
  • Be aware of potential side effects like dizziness or lightheadedness when standing up (orthostatic hypotension); stand up slowly.
  • Avoid or limit alcohol consumption, as it can increase drowsiness.
  • Be cautious when driving or operating machinery, especially when starting treatment or increasing dose, due to the risk of sudden sleep attacks or excessive drowsiness.
  • Report any unusual urges or behaviors (e.g., gambling, shopping, eating, sexual urges) to your doctor immediately.
  • Report any new or worsening hallucinations or confusion.

Dosing & Administration

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Adult Dosing

Standard Dose: Varies by indication and titration. For Parkinson's Disease, typically 0.125 mg three times daily initially, titrated weekly. For Restless Legs Syndrome, typically 0.125 mg once daily 2-3 hours before bedtime, titrated weekly.
Dose Range: 0.125 - 4.5 mg

Condition-Specific Dosing:

Parkinson's Disease (initial): 0.125 mg three times daily (0.375 mg/day), titrated weekly by 0.125 mg increments to a maximum of 1.5 mg three times daily (4.5 mg/day).
Restless Legs Syndrome (initial): 0.125 mg once daily 2-3 hours before bedtime, titrated weekly by 0.125 mg increments to a maximum of 0.5 mg once daily (0.75 mg/day).
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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 35-59 mL/min: Parkinson's Disease: Initial 0.125 mg twice daily. Max 2.25 mg/day. RLS: Initial 0.125 mg every other day.
Moderate: CrCl 15-34 mL/min: Parkinson's Disease: Initial 0.125 mg once daily. Max 1.5 mg/day. RLS: Initial 0.125 mg twice weekly.
Severe: CrCl <15 mL/min: Not recommended.
Dialysis: Not recommended.

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, with highest affinity for the D3 receptor. It is believed to exert its therapeutic effects by stimulating dopamine receptors in the striatum and substantia nigra, thereby mimicking the effects of dopamine and improving motor symptoms in Parkinson's disease and reducing the urge to move in Restless Legs Syndrome.
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Pharmacokinetics

Absorption:

Bioavailability: >90%
Tmax: 1-2 hours
FoodEffect: Food does not affect the extent of absorption, but may delay the time to peak concentration (Tmax).

Distribution:

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

Elimination:

HalfLife: Approximately 8 hours (young adults), 12 hours (elderly)
Clearance: Approximately 400 mL/min
ExcretionRoute: Renal (primarily unchanged)
Unchanged: >90%
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Pharmacodynamics

OnsetOfAction: Within hours to days of reaching therapeutic dose during titration.
PeakEffect: Dependent on titration schedule and individual response, typically observed after several weeks of dose optimization.
DurationOfAction: Related to its half-life, allowing for once or thrice daily dosing.

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 urinating
New or worsening mental, mood, or behavioral 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 individuals have developed uncontrolled 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

While many people may not experience side effects or only have mild ones, it is essential to be aware of the following potential side effects:

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

If you experience any of these side effects or have concerns about other symptoms, contact your doctor for advice. 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)
  • Severe dizziness or fainting spells
  • Hallucinations (seeing or hearing things that are not real)
  • Unusual or compulsive urges (e.g., gambling, shopping, eating, sexual activity)
  • New or worsening uncontrolled movements (dyskinesia)
  • Swelling in the legs or ankles
  • Muscle pain or tenderness, especially with fever or unusual tiredness (rare, but could indicate rhabdomyolysis)
  • Worsening of Restless Legs Syndrome symptoms (augmentation), such as earlier onset of symptoms in the evening, increased intensity, or spread to other limbs.
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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 symptoms you experienced.
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.

This list is not exhaustive, and it is crucial to discuss all 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 with your existing 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.
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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 performing tasks that require your full attention, such as driving, until you understand how it affects you. To minimize the risk of dizziness or fainting, stand up slowly after sitting or lying down, and exercise caution when navigating stairs.

Follow your doctor's instructions for monitoring your blood pressure. Do not discontinue this medication without consulting your doctor, as stopping it abruptly 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 impair your physical or mental responses, consult with 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 to you and your baby with your doctor.
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Overdose Information

Overdose Symptoms:

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

What to Do:

Seek immediate medical attention or call Poison Control (1-800-222-1222). Treatment is generally supportive, including gastric lavage, intravenous fluids, and antiemetics. Dopamine antagonists may be considered if CNS stimulation is severe, but may worsen Parkinsonian symptoms.

Drug Interactions

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Major Interactions

  • Dopamine antagonists (e.g., antipsychotics like haloperidol, phenothiazines, metoclopramide): May reduce the efficacy of pramipexole.
  • Drugs eliminated by renal tubular secretion (e.g., cimetidine, ranitidine, diltiazem, verapamil, quinidine, quinine): May decrease pramipexole clearance, leading to increased plasma levels.
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Moderate Interactions

  • CNS depressants (e.g., alcohol, sedatives, hypnotics): May potentiate the sedative effects of pramipexole.
  • Levodopa: May increase the incidence of dyskinesia when co-administered with pramipexole in Parkinson's disease.

Monitoring

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Baseline Monitoring

Renal function (CrCl)

Rationale: Pramipexole is primarily renally excreted; dose adjustment is necessary in renal impairment.

Timing: Prior to initiation of therapy.

Blood pressure (sitting and standing)

Rationale: To assess for baseline orthostatic hypotension risk.

Timing: Prior to initiation of therapy.

Mental status/Psychiatric history

Rationale: To assess for baseline risk of hallucinations, psychosis, and impulse control disorders.

Timing: Prior to initiation of therapy.

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Routine Monitoring

Blood pressure (orthostatic)

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

Target: Maintain within patient's normal limits, minimize symptomatic drops.

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

Mental status/Behavioral changes (e.g., hallucinations, delusions, impulse control disorders, compulsive behaviors)

Frequency: Regularly, at each follow-up visit.

Target: Absence of new or worsening psychiatric symptoms.

Action Threshold: Development of new or worsening hallucinations, psychosis, or impulse control disorders (e.g., pathological gambling, hypersexuality, compulsive shopping, binge eating) warrants dose reduction, discontinuation, or psychiatric evaluation.

Excessive daytime sleepiness/Sudden sleep onset

Frequency: Regularly, at each follow-up visit.

Target: Maintain normal wakefulness.

Action Threshold: Reports of excessive daytime sleepiness or sudden sleep attacks warrant dose reduction, discontinuation, or counseling against driving/operating machinery.

Motor symptoms (Parkinson's Disease)

Frequency: Regularly, at each follow-up visit.

Target: Improvement in motor symptoms without excessive dyskinesia.

Action Threshold: Worsening symptoms or development of troublesome dyskinesia may require dose adjustment or addition of other therapies.

RLS symptoms (Restless Legs Syndrome)

Frequency: Regularly, at each follow-up visit.

Target: Reduction in RLS symptom severity and frequency.

Action Threshold: Augmentation (worsening of RLS symptoms, earlier onset, or spread to other body parts) warrants dose reduction or discontinuation.

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Symptom Monitoring

  • Dizziness or lightheadedness upon standing (orthostatic hypotension)
  • Hallucinations (seeing or hearing things that are not there)
  • Delusions or paranoid thoughts
  • Unusual urges or inability to control impulses (e.g., gambling, shopping, eating, sexual urges)
  • Excessive daytime sleepiness or sudden onset of sleep
  • Nausea, vomiting, constipation
  • Swelling in ankles or feet (peripheral edema)
  • Muscle cramps or abnormal movements (dyskinesia)
  • Worsening of RLS symptoms or earlier onset (augmentation)

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 show developmental toxicity (e.g., reduced fetal body weight, skeletal variations) 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 may inhibit prolactin secretion in humans, potentially inhibiting lactation. It is not known whether pramipexole is excreted in human milk. Due to the potential for serious adverse reactions in nursing infants, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

Infant Risk: Risk L3 (Moderate concern). Potential for inhibition of lactation, and unknown effects on the infant due to drug excretion into milk.
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Pediatric Use

Safety and effectiveness in pediatric patients have not been established for either Parkinson's disease or Restless Legs Syndrome. Use is generally not recommended.

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Geriatric Use

Clearance of pramipexole decreases with age due to reduced renal function. Dose adjustment is necessary in elderly patients with impaired renal function. Elderly patients may be more susceptible to adverse effects such as hallucinations, orthostatic hypotension, and somnolence.

Clinical Information

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Clinical Pearls

  • Always titrate pramipexole slowly to minimize side effects, especially orthostatic hypotension and nausea.
  • Warn patients about the potential for sudden sleep attacks and advise them not to drive or operate heavy machinery if they experience somnolence.
  • Educate patients and caregivers about impulse control disorders (e.g., pathological gambling, hypersexuality, compulsive shopping, binge eating) and instruct them to report any new or worsening behaviors immediately.
  • Monitor for augmentation in RLS patients, which is a worsening of symptoms, earlier onset, or spread to other body parts. This may require dose reduction or discontinuation.
  • Pramipexole is primarily renally cleared; significant dose adjustments are required for patients with renal impairment.
  • Consider discontinuing pramipexole gradually to avoid withdrawal symptoms, which can resemble neuroleptic malignant syndrome (e.g., fever, rigidity, altered mental status).
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Alternative Therapies

  • Other dopamine agonists (e.g., ropinirole, rotigotine, bromocriptine)
  • Levodopa/carbidopa (for Parkinson's Disease)
  • MAO-B inhibitors (e.g., selegiline, rasagiline, safinamide)
  • COMT inhibitors (e.g., entacapone, opicapone)
  • Amantadine
  • For RLS: Gabapentin enacarbil, iron supplementation (if iron deficient), non-pharmacological interventions.
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Cost & Coverage

Average Cost: Varies widely by pharmacy and dosage; typically $30-$150 per 30 tablets (1mg)
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (generic), Tier 3 or higher (brand)
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General Drug Facts

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 this 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.