Lyrica 225mg** Capsules

Manufacturer PFIZER U.S. Active Ingredient Pregabalin Capsules(pre GAB a lin) Pronunciation pre-GAB-a-lin
It is used to help control certain kinds of seizures.It is used to treat painful nerve diseases.It is used to treat fibromyalgia.It may be given to you for other reasons. Talk with the doctor.
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Drug Class
Anticonvulsant, Analgesic (Neuropathic Pain), Anxiolytic
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Pharmacologic Class
Alpha2-delta Ligand
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Pregnancy Category
Category C (Note: FDA has moved to a risk summary format, but historically Pregabalin was Category C)
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FDA Approved
Dec 2004
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DEA Schedule
Schedule V

Overview

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What is this medicine?

Pregabalin is a medication used to treat certain types of nerve pain (like from diabetes or shingles), fibromyalgia, and partial-onset seizures. It works by calming overactive nerve signals in the brain and body.
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How to Use This Medicine

Taking Your Medication

To get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided with your prescription and follow the instructions closely. You can take this medication with or without food. Continue taking your medication as directed by your doctor or healthcare provider, even if you start to feel better.

Storing and Disposing of Your Medication

To keep your medication safe and effective, store it in its original container at room temperature in a dry place. Avoid storing it in a bathroom. Keep your medication out of reach of children and pets, and store it in a secure location where others cannot access it. Consider using a locked box or area to store your medication.

What to Do If You Miss a Dose

If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses to make up for a missed dose.
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Lifestyle & Tips

  • Avoid alcohol and other CNS depressants (e.g., opioids, benzodiazepines) as they can increase side effects like dizziness and drowsiness.
  • Do not drive or operate heavy machinery until you know how this medication affects you, as it can cause dizziness and somnolence.
  • Do not stop taking this medication suddenly, especially if you have been taking it for seizures, as it can lead to withdrawal symptoms or increased seizure frequency. Your doctor will guide you on how to slowly reduce the dose.
  • Report any new or worsening mood changes, depression, or suicidal thoughts to your doctor immediately.
  • Report any unexplained muscle pain, tenderness, or weakness, especially if accompanied by fever or dark urine.

Dosing & Administration

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Adult Dosing

Standard Dose: Initial 75 mg BID or 50 mg TID (150 mg/day), titrated up to 300-600 mg/day depending on indication and tolerability.
Dose Range: 150 - 600 mg

Condition-Specific Dosing:

Diabetic Peripheral Neuropathy: Initial 50 mg TID (150 mg/day), may increase to 100 mg TID (300 mg/day) within 1 week. Max 300 mg TID (600 mg/day).
Postherpetic Neuralgia: Initial 75 mg BID or 50 mg TID (150 mg/day), may increase to 150 mg BID or 100 mg TID (300 mg/day) within 1 week. Max 300 mg BID or 200 mg TID (600 mg/day).
Fibromyalgia: Initial 75 mg BID (150 mg/day), may increase to 150 mg BID (300 mg/day) within 1 week. Max 225 mg BID (450 mg/day).
Partial-Onset Seizures (adjunctive): Initial 75 mg BID or 50 mg TID (150 mg/day), may increase to 150 mg BID or 100 mg TID (300 mg/day) within 1 week. Max 300 mg BID or 200 mg TID (600 mg/day).
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Pediatric Dosing

Neonatal: Not established
Infant: Not established
Child: Limited data for adjunctive treatment of partial-onset seizures (e.g., 2.5-10 mg/kg/day divided BID or TID, max 600 mg/day). Dosing varies by weight and age.
Adolescent: Limited data for adjunctive treatment of partial-onset seizures (e.g., 2.5-10 mg/kg/day divided BID or TID, max 600 mg/day). Dosing varies by weight and age.
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Dose Adjustments

Renal Impairment:

Mild: CrCl 60 mL/min: Max 600 mg/day (divided BID or TID)
Moderate: CrCl 30-60 mL/min: Max 300 mg/day (divided BID or TID)
Severe: CrCl 15-30 mL/min: Max 150 mg/day (divided QD or BID)
Dialysis: CrCl <15 mL/min: Max 75 mg/day (divided QD or BID). Supplemental dose of 25-50 mg immediately following a 4-hour hemodialysis session.

Hepatic Impairment:

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

Pharmacology

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Mechanism of Action

Pregabalin binds with high affinity to the alpha2-delta (ι2-δ) subunit of voltage-gated calcium channels in the central nervous system. While the precise mechanism of action is unknown, binding to the ι2-δ subunit is thought to modulate the release of several neurotransmitters, including glutamate, norepinephrine, and substance P, which are involved in pain and seizure activity.
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Pharmacokinetics

Absorption:

Bioavailability: >=90%
Tmax: 1.5 hours (fasted state)
FoodEffect: Food delays Tmax by approximately 2.5 hours and decreases Cmax by 25-30%, but does not significantly affect the extent of absorption (AUC).

Distribution:

Vd: Approximately 0.5 L/kg
ProteinBinding: <1%
CnssPenetration: Yes, readily crosses the blood-brain barrier

Elimination:

HalfLife: 6.3 hours
Clearance: Primarily renal clearance
ExcretionRoute: Renal (unchanged drug)
Unchanged: ~98%
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Pharmacodynamics

OnsetOfAction: Within 1 week for some indications (e.g., neuropathic pain), but full effect may take longer with titration.
PeakEffect: Not precisely defined for all therapeutic effects, but plasma concentrations peak at 1.5 hours.
DurationOfAction: Approximately 8-12 hours (consistent with BID/TID dosing)
Confidence: Medium

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 or your caregiver 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
Changes in eyesight
Muscle pain or weakness
Changes in balance
Feeling confused
Shakiness
Trouble breathing, slow breathing, or shallow breathing
Blue or gray color of the skin, lips, nail beds, fingers, or toes
Memory problems or loss
Shortness of breath, significant weight gain, or swelling in the arms or legs
Fast or abnormal heartbeat
Fever, chills, or sore throat
Skin sores or any skin changes
Trouble speaking
Trouble sleeping
Trouble walking
Feeling unusually euphoric (easy laughing and feeling good)
Twitching

If you experience extreme drowsiness, dizziness, or loss of consciousness, seek medical help immediately. Caregivers should seek medical help if the patient is unresponsive, uncommunicative, or unable to wake up.

Important Warning: Suicidal Thoughts and Actions

Like other medications used to treat seizures, this drug may rarely increase the risk of suicidal thoughts or actions, particularly in individuals with a history of suicidal behavior. If you or your caregiver notice any new or worsening symptoms, such as:

Depression
Feeling nervous, restless, or irritable
Panic attacks
Changes in mood or behavior

contact your doctor immediately. If you experience suicidal thoughts or actions, seek medical help right away.

Low Platelet Counts and Bleeding Risk

This medication may rarely cause low platelet counts, increasing the risk of bleeding. If you notice any unexplained bruising or bleeding, contact your doctor immediately.

Other Possible Side Effects

Most people taking this medication do not experience significant side effects, but some may occur. If you experience any of the following side effects, contact your doctor if they bother you or do not resolve:

Dizziness
Drowsiness
Fatigue
Weakness
Weight gain
Difficulty concentrating
Headache
Dry mouth
Constipation
Increased appetite
Upset stomach
Joint pain
* Nose or throat irritation

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:

  • Signs of an allergic reaction (e.g., rash, hives, swelling of the face, lips, tongue, or throat, difficulty breathing)
  • Significant swelling of hands, feet, or ankles (peripheral edema)
  • Sudden or unexplained weight gain
  • Blurred vision or other changes in eyesight
  • New or worsening depression, anxiety, agitation, or suicidal thoughts/behavior
  • Unusual bruising or bleeding
  • Severe dizziness or extreme drowsiness
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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. Be sure to describe the allergic reaction and its symptoms.
If you have kidney disease, as this may affect the medication's safety and efficacy.
If you are breastfeeding, as you should not breastfeed while taking this medication.

Additionally, to ensure your safety, it is crucial to:

Inform your doctor and pharmacist about all medications you are taking, including prescription and over-the-counter drugs, natural products, and vitamins.
Discuss all your health problems with your doctor, as some conditions may interact with this medication.
Verify that it is safe to take this medication with all your other medications and health conditions before starting, stopping, or changing the dose of any medication. Always consult your doctor before making any changes to your medication regimen.
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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.

Before operating a vehicle or engaging in any activity that requires alertness and clear vision, wait until you understand how this medication affects you.

If you experience a change in the frequency or severity of seizures after starting this medication, consult your doctor promptly.

Do not abruptly discontinue this medication without first consulting your doctor, as this may increase your risk of side effects. If it is necessary to stop taking this medication, your doctor will provide guidance on how to gradually taper off the dosage.

While taking this medication, it is recommended that you avoid consuming alcohol.

Before using marijuana, cannabis products, or prescription or over-the-counter medications that may cause drowsiness, discuss the potential risks with your doctor.

A rare but potentially life-threatening reaction called angioedema has been associated with this medication. Symptoms may include swelling of the hands, face, lips, eyes, tongue, or throat, difficulty breathing, swallowing problems, or unusual hoarseness. If you experience any of these symptoms, seek immediate medical attention.

Severe respiratory problems have occurred in individuals taking this medication, particularly when combined with other medications such as opioid pain relievers, or in those with pre-existing lung or breathing problems. This risk may be higher in individuals over 65 years old, and in some cases, has been fatal. If you have concerns, consult your doctor.

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

Men who plan to father a child should discuss the potential risks with their doctor, as this medication has been shown to decrease fertility and cause sperm changes in animal studies, and has also been associated with birth defects in the offspring of treated male animals. It is unknown whether these effects occur in humans.

If you are pregnant or plan to become pregnant, inform your doctor, as you will need to discuss the benefits and risks of using this medication during pregnancy.
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Overdose Information

Overdose Symptoms:

  • Somnolence
  • Confusion
  • Agitation
  • Restlessness
  • Seizures (rare)
  • Coma

What to Do:

Seek immediate medical attention or call Poison Control (1-800-222-1222). There is no specific antidote; treatment is supportive and symptomatic. Hemodialysis can remove pregabalin from the system if necessary.

Drug Interactions

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Moderate Interactions

  • CNS depressants (e.g., opioids, benzodiazepines, alcohol, anxiolytics, hypnotics, tricyclic antidepressants): May cause additive CNS depression (somnolence, dizziness, respiratory depression).
  • Thiazolidinediones (e.g., rosiglitazone, pioglitazone): May increase risk of weight gain and peripheral edema.

Monitoring

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Baseline Monitoring

Renal function (CrCl)

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

Timing: Prior to initiation

Mental health assessment (for suicidal ideation/behavior)

Rationale: Antiepileptic drugs (AEDs), including pregabalin, may increase the risk of suicidal thoughts or behavior.

Timing: Prior to initiation

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Routine Monitoring

Efficacy (pain reduction, seizure control, anxiety symptoms)

Frequency: Regularly during titration and maintenance

Target: Individualized based on patient response and tolerability

Action Threshold: Lack of efficacy or intolerable side effects warrant dose adjustment or discontinuation.

Adverse effects (dizziness, somnolence, peripheral edema, weight gain, blurred vision)

Frequency: Regularly, especially during titration

Target: Minimize occurrence

Action Threshold: Significant or persistent adverse effects require dose reduction or discontinuation.

Renal function (CrCl)

Frequency: Periodically, especially in elderly or those with changing renal status

Target: Maintain appropriate dose for CrCl

Action Threshold: Significant decline in CrCl requires dose adjustment.

Weight

Frequency: Periodically

Target: Maintain healthy weight

Action Threshold: Significant or rapid weight gain may indicate fluid retention or other issues.

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Symptom Monitoring

  • Dizziness
  • Somnolence
  • Peripheral edema (swelling of hands/feet)
  • Weight gain
  • Blurred vision or other visual disturbances
  • Difficulty concentrating
  • Dry mouth
  • Suicidal thoughts or behavior
  • Changes in mood or behavior (e.g., agitation, depression, anxiety)
  • Signs of hypersensitivity reaction (e.g., rash, hives, swelling of face/lips/tongue/throat)
  • Muscle pain, tenderness, or weakness (rare, but consider rhabdomyolysis)

Special Patient Groups

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Pregnancy

Use during pregnancy should only be considered if the potential benefit justifies the potential risk to the fetus. A pregnancy exposure registry is available. Animal studies have shown developmental toxicity (skeletal abnormalities, growth retardation, functional deficits).

Trimester-Specific Risks:

First Trimester: Potential for increased risk of major congenital malformations based on some observational studies, though data are conflicting and limited.
Second Trimester: Not well-studied, but continued exposure may contribute to growth retardation observed in animal studies.
Third Trimester: Potential for neonatal withdrawal symptoms if discontinued abruptly. Risk of respiratory depression in neonates if used close to delivery, especially with other CNS depressants.
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Lactation

Pregabalin is excreted into human milk. The amount of pregabalin in breast milk is low, and adverse effects in breastfed infants are generally not expected, but somnolence or poor feeding could occur. Monitor the infant for sedation and feeding difficulties.

Infant Risk: Low to moderate risk (L3)
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Pediatric Use

Safety and efficacy have not been established in pediatric patients for neuropathic pain or fibromyalgia. For adjunctive treatment of partial-onset seizures, efficacy has been established in patients 1 month to <4 years and 4 to <17 years of age, but dosing is weight-based and requires careful titration. Increased risk of accidental injury and weight gain in pediatric patients.

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Geriatric Use

Elderly patients may be more susceptible to dose-related adverse effects (dizziness, somnolence, peripheral edema) due to age-related decline in renal function. Dose adjustment is often necessary based on creatinine clearance. Start with lower doses and titrate slowly.

Clinical Information

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Clinical Pearls

  • Pregabalin should be tapered gradually over at least 1 week when discontinuing to minimize withdrawal symptoms (e.g., insomnia, nausea, headache, anxiety, diarrhea, flu-like syndrome, nervousness, depression, pain, convulsions).
  • Patients should be advised about the potential for angioedema (swelling of the face, mouth, or neck) and to seek immediate medical attention if it occurs.
  • Monitor for signs of suicidal ideation and behavior, especially at the beginning of treatment or after dose changes.
  • Pregabalin can cause weight gain and peripheral edema, particularly when co-administered with thiazolidinediones.
  • Due to its Schedule V classification, prescribers should be aware of the potential for abuse and dependence, although the risk is generally considered lower than for Schedule II-IV substances.
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Alternative Therapies

  • Gabapentin (Neurontin)
  • Duloxetine (Cymbalta)
  • Venlafaxine (Effexor XR)
  • Amitriptyline
  • Nortriptyline
  • Carbamazepine (Tegretol)
  • Oxcarbazepine (Trileptal)
  • Lamotrigine (Lamictal)
  • Topiramate (Topamax)
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Cost & Coverage

Average Cost: $100 - $300 per 30 capsules (225mg)
Generic Available: Yes
Insurance Coverage: Tier 2 or Tier 3 (for brand Lyrica); Tier 1 or Tier 2 (for generic pregabalin)
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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 use, never share your medication with others or take someone else's medication. This medication is accompanied by a Medication Guide, which provides crucial information for patients. Please read this guide carefully and review it again whenever your prescription is refilled. If you have any questions or concerns about this medication, consult your doctor, 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 reporting the incident, be prepared to provide details about the medication taken, the amount, and the time it occurred.