Indomethacin 25mg Capsules
Overview
What is this medicine?
How to Use This Medicine
To use this medication correctly, follow your doctor's instructions and read all the information provided. Take your medication with food to help prevent stomach upset, and swallow it with a full glass of water.
Storing and Disposing of Your Medication
Keep your medication at room temperature, away from light and moisture. Avoid storing it in a bathroom. Store all medications in a safe location, out of the reach of children and pets. When you're finished with your medication or it expires, dispose of it properly. Do not flush it down the toilet or pour it down the drain unless instructed to do so. If you're unsure about how to dispose of your medication, consult your pharmacist. You may also want to check if there are any 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's close to the time for your next dose, skip the missed dose and resume your regular schedule. Do not take two doses at the same time or take extra doses to make up for a missed one.
Lifestyle & Tips
- Take with food, milk, or an antacid to reduce stomach upset.
- Do not lie down for at least 10 minutes after taking to prevent esophageal irritation.
- Avoid alcohol, as it can increase the risk of stomach bleeding.
- Do not take other NSAIDs (like ibuprofen or naproxen) concurrently without consulting your doctor.
- Stay well-hydrated, especially if you have kidney problems.
Available Forms & Alternatives
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
BLACK BOX WARNING
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you experience any of the following symptoms, contact your doctor or seek medical attention immediately:
Allergic Reaction: 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, or swelling of the mouth, face, lips, tongue, or throat.
Bleeding: Vomiting or coughing up blood, vomit that resembles coffee grounds, blood in the urine, black, red, or tarry stools, bleeding from the gums, 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, feeling faint, 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.
Neurological Issues: Weakness on one side of the body, speech or thinking difficulties, balance changes, drooping on one side of the face, or blurred vision.
Vision Changes: Changes in eyesight.
Other Symptoms: Ringing in the ears, depression, 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 life-threatening, so seek medical help immediately if you experience any of these symptoms.
Severe Skin Reactions: These can include Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious reactions, which can affect internal organs and be life-threatening. Seek medical help immediately if you experience red, swollen, blistered, or peeling skin; red or irritated eyes; sores in your mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.
Other Possible Side Effects
While many people may not experience side effects or may only have mild side effects, it's essential to be aware of the following:
Headache
Constipation, diarrhea, stomach pain, upset stomach, or vomiting
Heartburn
Gas
* Dizziness, drowsiness, fatigue, or weakness
If any of these side effects or other symptoms bother you or persist, contact your doctor or seek medical attention.
Reporting 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.
Seek Immediate Medical Attention If You Experience:
- Severe stomach pain, black or tarry stools, vomiting blood or material that looks like coffee grounds (signs of stomach bleeding)
- Chest pain, shortness of breath, sudden weakness or numbness on one side of the body, slurred speech (signs of heart attack or stroke)
- Swelling in your hands or feet, unexplained weight gain, decreased urination (signs of kidney problems)
- Yellowing of the skin or eyes, dark urine, persistent nausea or vomiting, unusual tiredness (signs of liver problems)
- Skin rash, hives, itching, difficulty breathing or swallowing, swelling of the face/lips/tongue/throat (signs of allergic reaction)
- Unusual bruising or bleeding
- Severe or persistent headache, dizziness, confusion
Before Using This Medicine
It is crucial to inform your doctor about the following:
Any allergies you have, including allergies to this drug, its components, or other substances, such as foods or medications. Describe the allergic reaction and its symptoms.
Allergies to aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen.
A history of asthma triggered by salicylate drugs, such as aspirin, or NSAIDs.
Existing health conditions, including:
+ Dehydration
+ Gastrointestinal (GI) bleeding
+ Heart failure (weak heart)
+ Kidney disease
+ Liver disease
Recent heart attack.
Current use of other NSAIDs, salicylate drugs (e.g., aspirin or diflunisal), triamterene, or pemetrexed.
Fertility issues or ongoing fertility evaluation.
Pregnancy, planned pregnancy, or pregnancy during treatment with this medication. This drug may harm an unborn baby if taken after 20 weeks of pregnancy. 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.
To ensure safe treatment, it is essential to disclose all your medications (prescription, over-the-counter, natural products, and vitamins) and health issues to your doctor and pharmacist. Verify that it is safe to take this medication with your other medications and health conditions. Never start, stop, or adjust the dosage of any medication without consulting your doctor.
Precautions & Cautions
Until you understand how this medication affects you, avoid driving and other activities that require alertness. Be aware that you may experience easier bleeding, so it is crucial to be cautious and avoid injuries. To minimize the risk of bleeding, use a soft toothbrush and an electric razor for shaving.
This medication may interfere with certain laboratory tests, so it is vital to inform all your healthcare providers and laboratory personnel that you are taking this drug. Before consuming alcohol, discuss the potential risks with your doctor. If you smoke, consult with your doctor about the possible implications. Long-term use of this medication may require regular blood tests, so discuss this with your doctor.
There is a potential risk of developing high blood pressure with this type of medication. Ensure that your blood pressure is monitored as advised by your doctor. If you have asthma, consult with your doctor, as you may be more sensitive to this medication.
The use of drugs like this one may increase the risk of heart failure. If you already have heart failure, the risk of heart attack, hospitalization for heart failure, and death may be higher. Discuss these risks with your doctor. Additionally, people taking this type of medication after a recent heart attack may have a higher risk of heart attack and heart-related death. There is also an increased risk of death in the year following a first heart attack compared to those not taking this medication. Consult with your doctor about these risks.
If you are taking aspirin to prevent heart attacks, discuss the potential interactions with your doctor. This medication may worsen depression, mood problems, seizures, and conditions like Parkinson's disease. Inform your doctor if you have any of these conditions and if your symptoms deteriorate.
If you are 65 years or older, use this medication with caution, as you may be more susceptible to side effects. NSAIDs like this medication may affect ovulation, potentially impacting fertility. However, this effect is reversible when the medication is stopped. Discuss this with your doctor if you are planning to conceive.
Finally, if you are breastfeeding, consult with your doctor to discuss the potential risks to your baby.
Overdose Information
Overdose Symptoms:
- Nausea
- Vomiting
- Stomach pain
- Lethargy
- Drowsiness
- Headache
- Dizziness
- Disorientation
- Convulsions
- Coma (rare)
- Acute renal failure (rare)
- GI bleeding (rare)
What to Do:
Seek immediate medical attention. Call 911 or Poison Control at 1-800-222-1222. Treatment is supportive and symptomatic. May involve gastric lavage, activated charcoal, and monitoring of vital signs and renal function.
Drug Interactions
Contraindicated Interactions
- Coronary Artery Bypass Graft (CABG) surgery (peri-operative pain)
- History of asthma, urticaria, or other allergic-type reactions after aspirin or other NSAIDs
- Severe renal impairment (CrCl < 30 mL/min)
- Active gastrointestinal bleeding or ulceration
- Late pregnancy (third trimester)
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.
- Lithium: Increased lithium plasma concentrations and toxicity.
- Methotrexate: Increased methotrexate plasma concentrations and toxicity.
- Cyclosporine: Increased nephrotoxicity.
- Diuretics (e.g., furosemide, thiazides): Reduced diuretic and antihypertensive effects, increased risk of renal impairment.
- ACE inhibitors/ARBs: Reduced antihypertensive effect, increased risk of renal impairment.
- SSRIs/SNRIs: Increased risk of GI bleeding.
- Digoxin: Increased digoxin plasma concentrations.
Moderate Interactions
- Beta-blockers: Reduced antihypertensive effect.
- Hydralazine: Reduced antihypertensive effect.
- Probenecid: Increased indomethacin plasma concentrations and half-life.
- Triamterene: Increased risk of renal failure.
- Potassium-sparing diuretics: Increased risk of hyperkalemia.
- Phenytoin: Possible increased phenytoin levels.
- Oral hypoglycemics: Possible potentiation of hypoglycemic effect.
Minor Interactions
- Antacids: May delay absorption but not significantly affect extent.
- Cholestyramine: May reduce absorption.
Monitoring
Baseline Monitoring
Rationale: To assess for anemia, leukopenia, or thrombocytopenia, which can be adverse effects of NSAIDs.
Timing: Prior to initiation.
Rationale: To assess baseline kidney function, as NSAIDs can cause renal impairment.
Timing: Prior to initiation.
Rationale: To assess baseline liver function, as NSAIDs can cause liver enzyme elevations or rare liver injury.
Timing: Prior to initiation.
Rationale: NSAIDs can cause new onset hypertension or worsen pre-existing hypertension.
Timing: Prior to initiation.
Routine Monitoring
Frequency: Periodically, especially in patients with risk factors for renal impairment (e.g., elderly, heart failure, diuretic use) or on long-term therapy.
Target: Within normal limits or stable from baseline.
Action Threshold: Significant increase in creatinine (>20% from baseline) or decrease in eGFR; consider dose reduction or discontinuation.
Frequency: Periodically, especially in patients on long-term therapy.
Target: Within normal limits or stable from baseline.
Action Threshold: Significant elevation (e.g., >3x ULN); consider discontinuation.
Frequency: Regularly, especially in hypertensive patients.
Target: Individualized target.
Action Threshold: Sustained elevation; consider antihypertensive adjustment or NSAID discontinuation.
Frequency: Periodically for long-term therapy (e.g., annually or as clinically indicated).
Target: Within normal limits.
Action Threshold: Significant changes (e.g., unexplained anemia, leukopenia, thrombocytopenia); investigate and consider discontinuation.
Symptom Monitoring
- Signs of gastrointestinal bleeding (black, tarry stools; coffee-ground vomit; severe abdominal pain)
- Symptoms 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)
- Symptoms of liver injury (yellowing of skin/eyes, dark urine, persistent nausea/vomiting, unusual fatigue)
- Signs of allergic reaction (rash, itching, hives, swelling of face/lips/tongue/throat, difficulty breathing)
- Unusual bruising or bleeding
- Severe or persistent headache, dizziness, confusion
Special Patient Groups
Pregnancy
Avoid use in the third trimester of pregnancy due to the risk of premature closure of the fetal ductus arteriosus and persistent pulmonary hypertension in the newborn. Use in the first and second trimesters should only be if the potential benefit justifies the potential risk to the fetus, and at the lowest effective dose for the shortest possible duration.
Trimester-Specific Risks:
Lactation
Indomethacin is excreted into breast milk in small amounts. While the amount is generally low, there is a potential for adverse effects in the infant (e.g., CNS effects, GI bleeding). Other NSAIDs with shorter half-lives or lower milk transfer may be preferred. Use with caution, monitor infant for adverse effects.
Pediatric Use
Safety and efficacy for general pain and inflammation in pediatric patients (other than for PDA closure in neonates with IV formulation) have not been established. Use is generally not recommended due to potential for serious adverse effects, including CNS effects and GI bleeding. If used, it should be under strict specialist supervision.
Geriatric Use
Elderly patients are at increased risk for serious adverse reactions to NSAIDs, including gastrointestinal bleeding, ulceration, and perforation, as well as renal impairment and cardiovascular events. Use the lowest effective dose for the shortest duration possible. Monitor closely for adverse effects, especially renal function and GI symptoms.
Clinical Information
Clinical Pearls
- Indomethacin is a potent NSAID often reserved for conditions unresponsive to less potent NSAIDs due to its higher incidence of CNS and GI side effects.
- It is particularly effective for acute gouty arthritis due to its rapid onset and potent anti-inflammatory action.
- Always advise patients to take indomethacin with food, milk, or antacids to minimize GI irritation.
- Patients should be advised to remain upright for at least 10-15 minutes after taking the capsule to prevent esophageal irritation.
- Due to its potential for CNS side effects (e.g., headache, dizziness, confusion), caution patients about driving or operating machinery until they know how the drug affects them.
- Regular monitoring of blood pressure, renal function, and liver function is crucial, especially in elderly patients or those on long-term therapy.
Alternative Therapies
- Other NSAIDs (e.g., ibuprofen, naproxen, celecoxib, diclofenac)
- Acetaminophen (for pain and fever, no anti-inflammatory effect)
- Corticosteroids (for severe inflammation, short-term use)
- Colchicine (for acute gout)
- Allopurinol/Febuxostat (for chronic gout management)
- Disease-modifying antirheumatic drugs (DMARDs) for chronic inflammatory conditions (e.g., methotrexate, biologics)