Lodine XL 500mg Tablets

Manufacturer WYETH-AYERST Active Ingredient Etodolac Extended-Release Tablets(ee toe DOE lak) Pronunciation ee toe DOE lak
WARNING: This drug may raise the risk of heart and blood vessel problems like heart attack and stroke. These effects can be deadly. The risk may be greater if you have heart disease or risks for heart disease. However, it can also be raised even if you do not have heart disease or risks for heart disease. The risk can happen within the first weeks of using this drug and may be greater with higher doses or long-term use. Do not use this drug right before or after bypass heart surgery.This drug may raise the chance of severe and sometimes deadly stomach or bowel problems like ulcers or bleeding. The risk is greater in older people, and in people who have had stomach or bowel ulcers or bleeding before. These problems may occur without warning signs. @ COMMON USES: It is used to treat some types of arthritis.It is used to manage pain.
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Drug Class
Analgesic, Anti-inflammatory
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Pharmacologic Class
Nonsteroidal Anti-inflammatory Drug (NSAID), Cyclooxygenase (COX) Inhibitor
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Pregnancy Category
Category C (first and second trimesters); Category D (third trimester)
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FDA Approved
Sep 1997
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Etodolac extended-release is a type of medicine called a nonsteroidal anti-inflammatory drug (NSAID). It helps to reduce pain, swelling, and stiffness caused by conditions like arthritis. The 'extended-release' means the medicine is released slowly over time, so you usually only need to take it once a day.
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How to Use This Medicine

Taking Your Medication

To take this medication correctly, follow your doctor's instructions and read all the information provided. You can take it with or without food, but if it causes stomach upset, take it with food. Always take it with a full glass of water and swallow the tablet whole - do not chew, break, or crush it.

Storing and Disposing of Your Medication

Store your medication at room temperature in a dry place, avoiding the bathroom. Keep all medications in a safe location, out of the reach of children and pets. When disposing of unused or expired medication, do not flush it down the toilet or pour it down the drain unless instructed to do so. Instead, check with your pharmacist for guidance on the best disposal method or explore local drug take-back programs.

Missing a Dose

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

  • Take with food or milk to reduce stomach upset.
  • Swallow the tablet whole; do not crush, chew, or break it.
  • Avoid alcohol while taking this medication, as it can increase the risk of stomach problems.
  • Do not take other NSAIDs (like ibuprofen, naproxen, or aspirin) without consulting your doctor, as this can increase side effects.
  • Inform your doctor or dentist that you are taking this medication before any surgery or dental procedures.
  • Stay well-hydrated, especially if you have kidney problems.

Dosing & Administration

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Adult Dosing

Standard Dose: 500 mg once daily
Dose Range: 400 - 1000 mg

Condition-Specific Dosing:

osteoarthritis: 400 mg to 1000 mg once daily
rheumatoid_arthritis: 400 mg to 1000 mg once daily
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Pediatric Dosing

Neonatal: Not established
Infant: Not established
Child: Not established
Adolescent: Not established (safety and efficacy not established for extended-release formulation)
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Dose Adjustments

Renal Impairment:

Mild: Use with caution; monitor renal function
Moderate: Use with caution; monitor renal function; consider lower doses
Severe: Not recommended; contraindicated in advanced renal disease
Dialysis: Not recommended; Etodolac is not significantly removed by hemodialysis

Hepatic Impairment:

Mild: Use with caution; monitor liver function
Moderate: Use with caution; monitor liver function; consider lower doses
Severe: Not recommended; contraindicated in severe hepatic impairment

Pharmacology

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Mechanism of Action

Etodolac is a nonsteroidal anti-inflammatory drug (NSAID) that exhibits anti-inflammatory, analgesic, and antipyretic activities. Its mechanism of action, like that of other NSAIDs, is believed to be due to the inhibition of prostaglandin synthesis, primarily through the inhibition of cyclooxygenase (COX) enzymes. Etodolac shows some selectivity for COX-2 inhibition over COX-1 at therapeutic doses, which may contribute to its gastrointestinal tolerability profile.
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Pharmacokinetics

Absorption:

Bioavailability: Approximately 100%
Tmax: 6-12 hours (for extended-release formulation)
FoodEffect: Food does not significantly affect the extent of absorption but may slightly delay Tmax.

Distribution:

Vd: 0.4 L/kg
ProteinBinding: >99% (primarily to albumin)
CnssPenetration: Limited (detectable in CSF, but clinical significance not fully established)

Elimination:

HalfLife: 6-7 hours
Clearance: Not available (variable)
ExcretionRoute: Renal (approximately 60% as metabolites), Fecal (approximately 30% as metabolites)
Unchanged: <1% (renal)
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Pharmacodynamics

OnsetOfAction: Within 1-2 hours (for analgesic effect, though full anti-inflammatory effect may take longer)
PeakEffect: 2-4 weeks for full anti-inflammatory effect in chronic conditions
DurationOfAction: 24 hours (due to extended-release formulation)

Safety & Warnings

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BLACK BOX WARNING

CARDIOVASCULAR THROMBOTIC EVENTS: NSAIDs cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use. Etodolac is contraindicated in the setting of coronary artery bypass graft (CABG) surgery. GASTROINTESTINAL RISK: NSAIDs cause an increased risk of serious gastrointestinal adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events.
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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:

Allergic reactions: Rash, hives, itching, redness, swelling, blistering, or peeling skin with or without fever; wheezing; tightness in the chest or throat; difficulty breathing, swallowing, or speaking; hoarseness; or swelling of the mouth, face, lips, tongue, or throat. In rare cases, allergic reactions can be fatal.
Bleeding: Vomiting or coughing up blood; coffee ground-like vomit; blood in the urine; black, red, or tarry stools; gum bleeding; abnormal vaginal bleeding; unexplained bruises or bruises that enlarge; or uncontrollable bleeding.
Kidney problems: Inability to urinate, changes in urine output, blood in the urine, or sudden weight gain.
High potassium levels: Abnormal heartbeat, confusion, weakness, lightheadedness, dizziness, numbness or tingling, or shortness of breath.
High blood pressure: Severe headache or dizziness, fainting, or changes in vision.
Respiratory issues: Shortness of breath, sudden weight gain, or swelling in the arms or legs.
Cardiovascular issues: Chest pain or pressure, rapid heartbeat.
Neurological issues: Weakness on one side of the body, speech or thinking difficulties, balance changes, facial drooping, or blurred vision.
Other symptoms: Ringing in the ears, flu-like symptoms.
Liver problems: Dark urine, fatigue, decreased appetite, stomach pain or upset, light-colored stools, vomiting, or yellow skin and eyes. Liver problems can be fatal, so seek medical attention immediately if you experience any of these symptoms.
Severe skin reactions: Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious reactions can occur, potentially affecting internal organs and being life-threatening. Seek medical help right away if you experience red, swollen, blistered, or peeling skin; red or irritated eyes; sores in the mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.

Other Possible Side Effects

Most people experience no side effects or only mild side effects while taking this medication. However, if you notice any of the following symptoms or if they persist or bother you, contact your doctor:

Constipation, diarrhea, stomach pain, upset stomach, or vomiting.
Heartburn.
Gas.
Dizziness, tiredness, or weakness.
Headache.

This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, consult 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:

  • Severe stomach pain, black or tarry stools, vomit that looks like coffee grounds (signs of stomach bleeding)
  • Chest pain, shortness of breath, weakness on one side of the body, sudden slurred speech (signs of heart attack or stroke)
  • Swelling of the face, lips, tongue, or throat; difficulty breathing; severe rash or blistering (signs of allergic reaction)
  • Unusual weight gain or swelling in your hands or feet (signs of fluid retention or kidney problems)
  • Yellowing of the skin or eyes, dark urine, persistent nausea or vomiting (signs of liver problems)
  • Unexplained fatigue, pale skin, easy bruising or bleeding (signs of blood problems)
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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 conditions to ensure safe treatment:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Describe the allergic reaction and its symptoms.
Allergies to aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen.
A history of nasal polyps or swelling of the mouth, face, lips, tongue, or throat, unusual hoarseness, or trouble breathing after taking aspirin or NSAIDs.
Certain health conditions, including:
+ Gastrointestinal (GI) bleeding or kidney problems.
+ Heart failure (weak heart) or a recent heart attack.
Concurrent use of other NSAIDs, salicylate drugs like aspirin, or pemetrexed.
Use of phenylbutazone.
Fertility issues or ongoing fertility checks.
Pregnancy, planned pregnancy, or suspected pregnancy. This medication may harm an unborn baby if taken after 20 weeks of gestation. If you are between 20 and 30 weeks pregnant, only take this medication under your doctor's guidance. Do not take this medication if you are more than 30 weeks pregnant.

This list is not exhaustive, and it is crucial to discuss all your medications (prescription, over-the-counter, natural products, and vitamins) and health conditions with your doctor and pharmacist to ensure safe use. Never start, stop, or modify the dosage of any medication without consulting your doctor.
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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. If you are taking this drug for an extended period, your doctor may recommend regular blood tests to monitor your condition.

This medication may interfere with certain laboratory tests, so it is crucial to notify all your healthcare providers and lab personnel that you are taking this drug. Additionally, medications like this one have been associated with high blood pressure, so your doctor may advise you to have your blood pressure checked regularly.

Before consuming alcohol, discuss the potential risks with your doctor. If you smoke, you should also talk to your doctor about the potential interactions between smoking and this medication.

To minimize the risk of severe side effects, it is vital to adhere to the dosage instructions provided by your doctor. Do not take more than the prescribed amount, and do not take this medication for longer than recommended.

If you have asthma, consult your doctor before taking this medication, as you may be more sensitive to its effects. This medication can also increase your risk of bleeding, so it is essential to be cautious and avoid injuries. To minimize the risk of bleeding, use a soft toothbrush and an electric razor.

The use of medications like this one has been linked to an increased risk of heart failure. If you already have heart failure, this medication may increase your risk of heart attack, hospitalization for heart failure, and death. Discuss these risks with your doctor.

In people who have recently experienced a heart attack, medications like this one have been associated with an increased risk of heart attack and heart-related death. Furthermore, research has shown that people taking medications like this one after a first heart attack were more likely to die within a year compared to those not taking these medications. Talk to your doctor about these potential risks.

If you are taking aspirin to prevent a heart attack, consult your doctor about the potential interactions between aspirin and this medication. Older adults (65 years or older) should use this medication with caution, as they may be more susceptible to side effects.

Medications like this one, which are classified as NSAIDs, may affect ovulation (egg release) and potentially impact fertility. However, this effect is reversible, and ovulation typically returns to normal once the medication is stopped. Discuss these potential effects with your doctor.

If you are breastfeeding, inform your doctor, as they will need to assess the potential risks to your baby and provide guidance on the safe use of this medication.
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Overdose Information

Overdose Symptoms:

  • Lethargy
  • Drowsiness
  • Nausea
  • Vomiting
  • Epigastric pain
  • GI bleeding
  • Rarely: hypertension, acute renal failure, respiratory depression, coma

What to Do:

Seek immediate medical attention or call a poison control center (e.g., 1-800-222-1222). There is no specific antidote. Treatment is symptomatic and supportive. Gastric lavage or activated charcoal may be considered if ingestion is recent.

Drug Interactions

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Contraindicated Interactions

  • Coronary Artery Bypass Graft (CABG) surgery (peri-operative pain)
  • History of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs
  • Advanced renal disease
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Major Interactions

  • Anticoagulants (e.g., Warfarin, Heparin): Increased risk of bleeding
  • Antiplatelet agents (e.g., Aspirin, Clopidogrel): Increased risk of bleeding
  • Corticosteroids: Increased risk of GI ulceration and bleeding
  • SSRIs/SNRIs: Increased risk of GI bleeding
  • Lithium: Increased lithium plasma concentrations and toxicity
  • Methotrexate: Increased methotrexate plasma concentrations and toxicity
  • Diuretics (e.g., Furosemide, Thiazides): Reduced natriuretic and antihypertensive effects, potential for renal impairment
  • ACE Inhibitors/ARBs: Reduced antihypertensive effect, increased risk of renal impairment
  • Cyclosporine: Increased risk of nephrotoxicity
  • Digoxin: Increased digoxin plasma concentrations
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Moderate Interactions

  • Beta-blockers: Reduced antihypertensive effect
  • Hydantoins (e.g., Phenytoin): Increased phenytoin levels
  • Sulfonylureas: Potential for altered glucose metabolism
  • Cholestyramine: May reduce Etodolac absorption (separate administration times)
  • Alcohol: Increased risk of GI irritation/bleeding
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Minor Interactions

  • Antacids: May slightly delay absorption but not significantly affect bioavailability

Monitoring

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Baseline Monitoring

Complete Blood Count (CBC)

Rationale: To establish baseline and monitor for anemia or other hematologic abnormalities, especially with long-term use.

Timing: Prior to initiation

Renal Function (BUN, Creatinine, eGFR)

Rationale: To assess baseline renal function, as NSAIDs can cause renal impairment.

Timing: Prior to initiation

Liver Function Tests (ALT, AST, Bilirubin)

Rationale: To assess baseline hepatic function, as NSAIDs can cause liver injury.

Timing: Prior to initiation

Blood Pressure (BP)

Rationale: To establish baseline, as NSAIDs can cause new onset hypertension or worsen existing hypertension.

Timing: Prior to initiation

Occult Blood Test (if GI risk factors present)

Rationale: To screen for baseline GI bleeding risk.

Timing: Prior to initiation (if indicated)

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Routine Monitoring

Renal Function (BUN, Creatinine, eGFR)

Frequency: Periodically (e.g., every 6-12 months or more frequently in high-risk patients)

Target: Within normal limits; stable

Action Threshold: Significant increase in creatinine (>20% from baseline), decrease in eGFR; consider dose reduction or discontinuation.

Liver Function Tests (ALT, AST)

Frequency: Periodically (e.g., every 6-12 months or if symptoms of liver injury occur)

Target: Within normal limits

Action Threshold: Significant elevation (>3x ULN); discontinue drug.

Blood Pressure (BP)

Frequency: Regularly (e.g., at each visit or as clinically indicated)

Target: Individualized target BP

Action Threshold: Sustained elevation; consider antihypertensive adjustment or NSAID discontinuation.

CBC (Hemoglobin, Hematocrit)

Frequency: Annually or if symptoms of anemia/bleeding occur (for long-term therapy)

Target: Within normal limits

Action Threshold: Significant drop; investigate for GI bleeding or other causes.

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Symptom Monitoring

  • Signs of gastrointestinal bleeding (black, tarry stools; coffee-ground vomit; severe abdominal pain)
  • Signs of cardiovascular events (chest pain, shortness of breath, weakness on one side of the body, slurred speech)
  • Signs of renal dysfunction (decreased urine output, swelling in ankles/feet, unusual fatigue)
  • Signs of liver injury (yellowing of skin/eyes, dark urine, persistent nausea/vomiting, severe abdominal pain)
  • Signs of allergic reactions (rash, hives, itching, swelling of face/lips/tongue, difficulty breathing)
  • Unexplained weight gain or edema
  • Severe skin reactions (rash, blistering, peeling skin)

Special Patient Groups

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Pregnancy

Use should be avoided during the third trimester of pregnancy due to the risk of premature closure of the fetal ductus arteriosus. Use during the first and second trimesters should only be if the potential benefit justifies the potential risk to the fetus.

Trimester-Specific Risks:

First Trimester: Potential for increased risk of miscarriage and cardiac malformation (limited data, conflicting studies).
Second Trimester: Potential for increased risk of miscarriage and cardiac malformation (limited data, conflicting studies).
Third Trimester: Risk of premature closure of the fetal ductus arteriosus, persistent pulmonary hypertension of the newborn, oligohydramnios, and renal dysfunction in the fetus. May inhibit uterine contractions and prolong labor.
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Lactation

Etodolac is excreted in breast milk in small amounts. While the risk to a nursing infant appears low, caution is advised. Consider the developmental and health benefits of breastfeeding, the mother’s clinical need for Etodolac, and any potential adverse effects on the breastfed infant from Etodolac or from the underlying maternal condition.

Infant Risk: Low risk; monitor infant for adverse effects such as irritability, rash, or gastrointestinal upset.
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Pediatric Use

Safety and efficacy of Etodolac extended-release have not been established in pediatric patients. Use is generally not recommended.

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Geriatric Use

Elderly patients are at increased risk for serious cardiovascular, gastrointestinal, and renal adverse events with NSAID use. Use the lowest effective dose for the shortest duration possible. Monitor renal function, GI bleeding, and blood pressure closely.

Clinical Information

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Clinical Pearls

  • Etodolac ER offers once-daily dosing, which can improve patient adherence.
  • While Etodolac is considered to have some COX-2 selectivity, it is not a highly selective COX-2 inhibitor like celecoxib, and still carries significant GI and CV risks common to all NSAIDs.
  • Always advise patients to take with food or milk to minimize GI upset.
  • Educate patients on the signs and symptoms of serious adverse events (GI bleeding, CV events, renal dysfunction) and when to seek immediate medical attention.
  • Consider a proton pump inhibitor (PPI) or H2-blocker for patients at high risk of GI complications.
  • Avoid concomitant use with other NSAIDs, including over-the-counter products, to prevent additive toxicity.
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Alternative Therapies

  • Other NSAIDs (e.g., Ibuprofen, Naproxen, Celecoxib, Meloxicam, Diclofenac)
  • Acetaminophen (for pain and fever, no anti-inflammatory effect)
  • Opioid analgesics (for severe pain, with higher risk of side effects and dependence)
  • Topical NSAIDs (e.g., Diclofenac gel, for localized pain)
  • Non-pharmacological therapies (e.g., physical therapy, heat/cold therapy, exercise, acupuncture)
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Cost & Coverage

Average Cost: $30 - $150 per 30 tablets (for generic Etodolac ER 500mg)
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (for generic)
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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, a patient fact sheet that provides crucial information. Please read this guide carefully and review it again whenever you receive a refill of this medication. 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. Be prepared to provide detailed information about the overdose, including the substance taken, the amount, and the time it occurred.