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Look Up > Drugs > Etodolac
Etodolac
Pronunciation
U.S. Brand Names
Generic Available
Synonyms
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Warnings/Precautions
Adverse Reactions
Overdosage/Toxicology
Drug Interactions
Stability
Mechanism of Action
Pharmacodynamics/Kinetics
Usual Dosage
Dietary Considerations
Monitoring Parameters
Test Interactions
Mental Health: Effects on Mental Status
Mental Health: Effects on Psychiatric Treatment
Dental Health: Local Anesthetic/Vasoconstrictor Precautions
Dental Health: Effects on Dental Treatment
Patient Information
Dosage Forms
References

Pronunciation
(ee toe DOE lak)

U.S. Brand Names
Lodine®; Lodine® XL

Generic Available

Yes


Synonyms
Etodolic Acid

Pharmacological Index

Nonsteroidal Anti-Inflammatory Agent (NSAID)


Use

Dental: Management of postoperative pain

Medical: Acute and long-term use in the management of signs and symptoms of osteoarthritis and management of pain

Unapproved use: Rheumatoid arthritis


Pregnancy Risk Factor

C (D if used in 3rd trimester)


Contraindications

Hypersensitivity to etodolac, aspirin, or other NSAIDs


Warnings/Precautions

Use with caution in patients with congestive heart failure, hypertension, decreased renal or hepatic function, history of GI disease, or those receiving anticoagulants


Adverse Reactions

>10%:

Central nervous system: Dizziness

Dermatologic: Rash

Gastrointestinal: Abdominal cramps, heartburn, indigestion, nausea

1% to 10%:

Central nervous system: Headache, nervousness

Dermatologic: Itching

Endocrine & metabolic: Fluid retention

Gastrointestinal: Vomiting

Otic: Tinnitus

<1%: Congestive heart failure, hypertension, arrhythmia, tachycardia, confusion, hallucinations, aseptic meningitis, mental depression, drowsiness, insomnia, urticaria, erythema multiforme, toxic epidermal necrolysis, Stevens-Johnson syndrome, angioedema, polydipsia, hot flashes, gastritis, GI ulceration, cystitis, polyuria, agranulocytosis, anemia, hemolytic anemia, bone marrow suppression, leukopenia, thrombocytopenia, hepatitis, peripheral neuropathy, toxic amblyopia, blurred vision, conjunctivitis, dry eyes, decreased hearing, acute renal failure, allergic rhinitis, shortness of breath, epistaxis


Overdosage/Toxicology

Symptoms of overdose include acute renal failure, vomiting, drowsiness, leukocytes

Management of a nonsteroidal anti-inflammatory drug (NSAID) intoxication is primarily supportive and symptomatic. Fluid therapy is commonly effective in managing the hypotension that may occur following an acute NSAID overdose, except when this is due to an acute blood loss.


Drug Interactions

Decreased effect with aspirin

Increased effect/toxicity with aspirin (GI irritation), probenecid; increased effect/toxicity of lithium, methotrexate, digoxin, cyclosporin (nephrotoxicity), warfarin (bleeding)


Stability

Protect from moisture


Mechanism of Action

Inhibits prostaglandin synthesis by decreasing the activity of the enzyme, cyclo-oxygenase, which results in decreased formation of prostaglandin precursors


Pharmacodynamics/Kinetics

Onset of effect: Analgesia: 2-4 hours; Anti-inflammatory: A few days

Absorption: Oral: Well absorbed

Distribution: Vd: 0.4 L/kg

Protein binding: High

Half-life: 7 hours

Time to peak serum concentration: 1 hour


Usual Dosage

Single dose of 76-100 mg is comparable to the analgesic effect of aspirin 650 mg; in patients greater than or equal to 65 years, no substantial differences in the pharmacokinetics or side-effects profile were seen compared with the general population

Acute pain: 200-400 mg every 6-8 hours, as needed, not to exceed total daily doses of 1200 mg; for patients weighing <60 kg, total daily dose should not exceed 20 mg/kg/day

Osteoarthritis: Initial: 800-1200 mg/day given in divided doses: 400 mg 2 or 3 times/day; 300 mg 2, 3 or 4 times/day; 200 mg 3 or 4 times/day; total daily dose should not exceed 1200 mg; for patients weighing <60 kg, total daily dose should not exceed 20 mg/kg/day


Dietary Considerations

May be taken with food to decrease GI distress


Monitoring Parameters

Monitor CBC, liver enzymes; in patients receiving diuretics, monitor urine output and BUN/serum creatinine


Test Interactions

False-positive for urinary bilirubin and ketone bleeding time


Mental Health: Effects on Mental Status

Dizziness is common; may cause nervousness; rarely produces confusion, depression, insomnia, or hallucinations


Mental Health: Effects on Psychiatric Treatment

May rarely cause agranulocytosis; use caution with clozapine and carbamazepine; may decrease the clearance of lithium resulting in elevated serum levels and potential toxicity; monitor serum lithium levels


Dental Health: Local Anesthetic/Vasoconstrictor Precautions

No information available to require special precautions


Dental Health: Effects on Dental Treatment

NSAID formulations are known to reversibly decrease platelet aggregation via mechanisms different than observed with aspirin. The dentist should be aware of the potential of abnormal coagulation. Caution should also be exercised in the use of NSAIDs in patients already on anticoagulant therapy with drugs such as warfarin (Coumadin®).


Patient Information

Take this medication exactly as directed; do not increase dose without consulting prescriber. Do not crush tablets or break capsules. Take with food or milk to reduce GI distress. Maintain adequate fluid intake (2-3 L/day of fluids unless instructed to restrict fluid intake). Do not use alcohol, aspirin, or aspirin-containing medication, and all other anti-inflammatory medications without consulting prescriber. You may experience anorexia, nausea, vomiting, or heartburn (frequent small meals, frequent mouth care, sucking lozenges, or chewing gum may help); drowsiness, dizziness, nervousness, or headache (use caution when driving or engaging in tasks requiring alertness until response to drug is known); fluid retention (weigh yourself weekly and report unusual (3-5 lb/week) weight gain). GI bleeding, ulceration, or perforation can occur with or without pain; discontinue medication and contact prescriber if persistent abdominal pain or cramping, or blood in stool occurs. Report breathlessness, difficulty breathing, or unusual cough; chest pain, rapid heartbeat, palpitations; unusual bruising/bleeding; blood in urine, stool, mouth, or vomitus; swollen extremities; skin rash or itching; acute fatigue; or changes in hearing or ringing in ears. Pregnancy/breast-feeding precautions: Inform prescriber if you are or intend to be pregnant. Do not breast-feed.


Dosage Forms

Capsule: 200 mg, 300 mg

Lodine®: 200 mg, 300 mg

Tablet: 400 mg, 500 mg

Lodine®: 400 mg, 500 mg

Tablet, extended release (Lodine® XL): 400 mg, 500 mg, 600 mg


References

Boldy DA, Hale KA, and Vale JA, "Etodolac Overdose," Hum Toxicol, 1988, 7(2):203-4.

Brooks PM and Day RO, "Nonsteroidal Anti-inflammatory Drugs - Differences and Similarities," N Engl J Med, 1991, 324(24):1716-25.

Clinch D, Banerjee AK, Ostick G, "Absence of Abdominal Pain in Elderly Patients With Peptic Ulcer," Age Ageing, 1984, 13:120-3.

Clive DM, Stoff JS, "Renal Syndromes Associated With Nonsteroidal Anti-inflammatory Drugs," N Engl J Med, 1984, 310(9):563-72.

Court H and Volans GN, "Poisoning After Overdose With Nonsteroidal Anti-inflammatory Drugs," Adverse Drug React Acute Poisoning Rev, 1984, 3(1):1-21.

"Drugs for Pain," Med Lett Drugs Ther, 1998, 40(1033):79-84.

Graham DY, "Prevention of Gastroduodenal Injury Induced by Chronic Nonsteroidal Anti-inflammatory Drug Therapy," Gastroenterology, 1989, 96(2 Pt 2 Suppl):675-81.

Gurwitz JH, Avorn J, Ross-Degnan D, et al, "Nonsteroidal Anti-Inflammatory Drug-Associated Azotemia in the Very Old," JAMA, 1990, 264(4):471-5.

Hawkey CJ, Karrasch JA, Szczepanski L, et al, "Omeprazole Compared With Misoprostrol for Ulcers Associated With Nonsteroidal Anti-inflammatory Drugs," N Engl J Med, 1998, 338(11):727-34.

Hoppmann RA, Peden JG, and Ober SK, "Central Nervous System Side Effects of Nonsteroidal Anti-inflammatory Drugs. Aseptic Meningitis, Psychosis, and Cognitive Dysfunction," Arch Intern Med, 1991, 151(7):1309-13.

Mabee CL, Mabee SW, Baker PB, et al, "Fulminant Hepatic Failure Associated With Etodolac Use," Am J Gastroenterol, 1995, 90(4):659-61.

Pounder R, "Silent Peptic Ulceration: Deadly Silence or Golden Silence?" Gastroenterology, 1989, 96(2 Pt 2 Suppl):626-31.

Schnitzer TJ and Constantine G, "Etodolac (Lodine®) in the Treatment of Osteoarthritis: Recent Studies," J Rheumatol Suppl, 1997, 47:23-31.

Smolinske SC, Hall AH, Vandenberg SA, et al, "Toxic Effects of Nonsteroid Anti-inflammatory Drugs in Overdose. An Overview of Recent Evidence on Clinical Effects and Dose-Response Relationships," Drug Saf, 1990, 5(4):252-74.

Spencer-Green G, "Low Dose Etodolac in Rheumatoid Arthritis: A Review of Early Studies," J Rheumatol Suppl, 1997, 47:3-9.

Tucker PW, Smith JR, and Adams DF, "A Comparison of 2 Analgesic Regimens for the Control of Postoperative Periodontal Discomfort," J Periodontol, 1996, 67(2):125-9.

Vale JA and Meredith TJ, "Acute Poisoning Due to Nonsteroidal Anti-inflammatory Drugs," Med Toxicol, 1986, 1(1):12-31.

Verbeeck RK, "Pharmacokinetic Drug Interactions With Nonsteroidal Anti-inflammatory Drugs," Clin Pharmacokinet, 1990, 19(1):44-66.

Yeomans ND, Tulassay Z, Juhasz L, et al, "A Comparison of Omeprazole With Ranitidine for Ulcers Associated With Nonsteroidal Anti-inflammatory Drugs," N Engl J Med, 1998, 338(11):719-26.


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