Indomethacin Uses, Dosage, Side Effects, and Interactions Explained

Summary of Key Points

Indomethacin is a prescription medication used to relieve pain and reduce inflammation caused by conditions such as arthritis, gout, and tendonitis. It belongs to a group of drugs known as nonsteroidal anti-inflammatory drugs (NSAIDs). Indomethacin works by decreasing the production of substances in the body that lead to inflammation and pain. Always consult your healthcare provider before starting or adjusting your dose. You may also consider scheduling a telemedicine visit with one of our providers for personalized care.

Names of Medication

US Brand Name: Indocin

Generic Name: Indomethacin

The generic name refers to the active ingredient in the medication. Generic medications are typically more affordable but are just as effective as their brand-name counterparts.

Pharmacologic Category

Indomethacin is classified under Nonsteroidal Anti-inflammatory Drugs (NSAIDs).

Other commonly used NSAIDs include ibuprofen, naproxen, and diclofenac, which are also effective for managing pain and inflammation.

Indomethacin Dosage

Indomethacin is prescribed for a variety of conditions. Below are typical adult doses. Always follow your doctor’s instructions and consult a healthcare provider before making any changes. You can also schedule a telemedicine visit with one of our providers for expert guidance.

Indomethacin for Gout

Initial dose: 50 mg taken orally three times a day until pain is controlled.

Duration: Treatment usually continues until the acute gout attack subsides, typically within 3-5 days.

Indomethacin for Osteoarthritis

Initial dose: 25 mg to 50 mg taken orally two or three times a day.

Duration: Long-term treatment may be necessary depending on the severity of symptoms.

Indomethacin for Rheumatoid Arthritis

Initial dose: 25 mg to 50 mg taken orally two or three times a day.

Duration: Long-term treatment may be required to manage chronic inflammation.

Indomethacin for Ankylosing Spondylitis

Initial dose: 25 mg to 50 mg taken orally two or three times a day.

Duration: Treatment may be ongoing to manage symptoms effectively.

Indomethacin for Tendonitis and Bursitis

Initial dose: 75 mg to 150 mg per day, divided into two or three doses.

Duration: Treatment typically lasts 7-14 days, depending on the severity of the condition.

Indomethacin for Patent Ductus Arteriosus (PDA) in Infants

Initial dose: 0.2 mg/kg IV, followed by additional doses based on the infant’s response.

Duration: Typically administered over 2-3 days in a hospital setting.

Indomethacin for Acute Pain

Initial dose: 20 mg to 50 mg taken orally two or three times a day.

Duration: Treatment is usually short-term, lasting until the pain subsides.

Indomethacin for Inflammatory Conditions

Initial dose: 25 mg to 50 mg taken orally two or three times a day.

Duration: Treatment may be long-term, depending on the condition being treated.

Indomethacin for Fever

Initial dose: 25 mg to 50 mg taken orally two or three times a day.

Duration: Treatment is typically short-term, lasting until the fever resolves.

Dosage Forms and Strengths

Indomethacin is available in several forms and strengths to accommodate different treatment needs:

1. Capsules: 25 mg, 50 mg
2. Extended-release capsules: 75 mg
3. Oral suspension: 25 mg/5 mL
4. Rectal suppositories: 50 mg
5. Intravenous (IV) solution: 1 mg/mL (used in hospitals for PDA treatment in infants)

Administration Instructions

Indomethacin should be taken with food or milk to minimize the risk of stomach upset. If you are using the extended-release form, swallow the capsule whole; do not crush or chew it. For rectal suppositories, insert the suppository into the rectum as directed by your healthcare provider. If you miss a dose, take it as soon as you remember, but skip it if it’s almost time for your next dose. Never double up on doses.

Indomethacin Side Effects and Adverse Reactions

Like all medications, Indomethacin can cause side effects. Some are common and mild, while others are rare but more serious. If you experience any side effects, consult your healthcare provider immediately. You can also schedule a telemedicine visit with one of our providers for prompt care.

Common side effects: These may include nausea, vomiting, heartburn, and dizziness. These side effects are usually mild and tend to resolve on their own.

Less common side effects: These may include headaches, drowsiness, and diarrhea. If these symptoms persist, contact your doctor.

Serious side effects: These may include stomach ulcers, gastrointestinal bleeding, and kidney problems. Seek medical attention immediately if you experience severe stomach pain, black or bloody stools, or difficulty urinating.

Allergic reactions: In rare cases, some individuals may experience an allergic reaction, which can include rash, itching, swelling, or difficulty breathing. This requires immediate medical attention.

Contraindications for Indomethacin

A contraindication is a specific situation or condition where a particular medication should not be used because it may cause harm. For Indomethacin, several conditions and factors make it unsafe to take. Below is a list of common contraindications for Indomethacin and why it is not recommended in these cases:

Allergy to NSAIDs: If you have had an allergic reaction to nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirin, ibuprofen, or naproxen, you should not take Indomethacin. This could lead to serious allergic reactions, including difficulty breathing or swelling.

History of stomach ulcers or gastrointestinal bleeding: Indomethacin can increase the risk of stomach ulcers and bleeding, especially in individuals who have had these conditions before.

Severe kidney or liver disease: Indomethacin can worsen kidney or liver function, so it is not recommended for individuals with severe kidney or liver problems.

Heart disease or recent heart attack: Indomethacin can increase the risk of heart attack or stroke, particularly in individuals with a history of heart disease or those who have recently had a heart attack.

Uncontrolled high blood pressure: Indomethacin may raise blood pressure, making it unsafe for individuals with uncontrolled hypertension.

Pregnancy (especially in the third trimester): Indomethacin can harm the unborn baby, particularly in the later stages of pregnancy, as it may cause premature closure of a blood vessel in the baby’s heart.

Drug to Drug Interactions

Indomethacin can interact with other medications, potentially increasing side effects or diminishing the effectiveness of either drug. Below are some common medications that may interact with Indomethacin:

1. Blood thinners: Warfarin (Coumadin), Apixaban (Eliquis), and Rivaroxaban (Xarelto) – Indomethacin can elevate the risk of bleeding when combined with blood thinners.
2. Diuretics (water pills): Furosemide (Lasix), Hydrochlorothiazide (Microzide) – Indomethacin may reduce the effectiveness of diuretics, potentially leading to fluid retention or increased blood pressure.
3. ACE inhibitors and ARBs: Lisinopril (Zestril), Losartan (Cozaar) – These blood pressure medications may be less effective when taken with Indomethacin, and the combination could increase the risk of kidney damage.
4. Other NSAIDs: Ibuprofen (Advil), Naproxen (Aleve) – Taking multiple NSAIDs together raises the risk of stomach ulcers, bleeding, and kidney problems.
5. Corticosteroids: Prednisone (Deltasone) – Combining corticosteroids with Indomethacin can heighten the risk of gastrointestinal bleeding.
6. SSRIs and SNRIs: Fluoxetine (Prozac), Duloxetine (Cymbalta) – These antidepressants may increase the risk of bleeding when taken with Indomethacin.

Indomethacin in Pregnancy

Is it Safe to Take Indomethacin During Pregnancy?

Indomethacin is generally not recommended during pregnancy, particularly in the third trimester. Taking Indomethacin later in pregnancy can lead to serious complications, such as the premature closure of the ductus arteriosus, a vital blood vessel in the baby’s heart. This can result in heart and lung problems for the newborn. If you are pregnant or planning to become pregnant, it’s important to discuss alternative treatments with your healthcare provider. If you’re unsure about your options, our telemedicine providers are available to help you make the best decision for you and your baby.

Indomethacin While Breastfeeding

Is it Safe to Take Indomethacin While Breastfeeding?

Indomethacin passes into breast milk in small amounts. While it is generally considered safe for short-term use during breastfeeding, it’s essential to consult your healthcare provider before taking Indomethacin if you are nursing. Your provider may recommend alternative treatments based on your condition and your baby’s age. If you have concerns, our telemedicine providers can guide you through safe treatment options while breastfeeding.

Estimated Cost of Indomethacin Medication

The cost of a 30-day supply of Indomethacin without insurance can vary depending on the pharmacy and dosage. With a GoodRx coupon, the estimated cost for a 30-day supply of Indomethacin (25 mg capsules) typically ranges from $10 to $20. Be sure to check with your pharmacy for the most accurate pricing, and consider using a discount coupon to help lower your out-of-pocket expenses.

Possible Alternatives to Indomethacin

If Indomethacin is not suitable for you, there are alternative treatments and lifestyle changes that may help manage your condition. Always consult your healthcare provider before making any changes to your treatment plan. Our telemedicine providers can assist you in exploring these options.

1. Gout: Alternatives include colchicine or allopurinol, which help reduce uric acid levels. Lifestyle changes, such as limiting alcohol intake and avoiding purine-rich foods (like red meat and shellfish), can also help manage gout.
2. Osteoarthritis: Acetaminophen (Tylenol) or topical NSAIDs like diclofenac (Voltaren) may be used as alternatives. Physical therapy and maintaining a healthy weight can alleviate joint pain and improve mobility.
3. Rheumatoid Arthritis: Disease-modifying antirheumatic drugs (DMARDs) like methotrexate or biologics such as adalimumab (Humira) may be prescribed. Regular exercise and a balanced diet rich in anti-inflammatory foods can also help manage symptoms.
4. Ankylosing Spondylitis: TNF inhibitors like etanercept (Enbrel) or physical therapy may be considered. Stretching exercises and maintaining good posture can help relieve symptoms.
5. Tendonitis and Bursitis: Rest, ice, and physical therapy are often first-line treatments. Corticosteroid injections may be recommended for more severe cases.
6. Patent Ductus Arteriosus: In infants, surgical intervention may be necessary if the ductus arteriosus does not close on its own. Indomethacin is sometimes used in premature infants to help close this blood vessel.
7. Acute Pain: Acetaminophen or other NSAIDs like ibuprofen may be alternatives. Non-medication options such as heat or cold therapy and relaxation techniques can also help manage pain.
8. Inflammatory Conditions: Corticosteroids or DMARDs may be used to reduce inflammation. Lifestyle changes, including a diet rich in anti-inflammatory foods and regular exercise, can also help manage inflammation.
9. Fever: Acetaminophen or ibuprofen are commonly used to reduce fever. Staying hydrated and getting plenty of rest are also important for recovery.

Recent Updates on Indomethacin Research

Recent research has explored the potential use of Indomethacin in treating COVID-19 due to its anti-inflammatory and antiviral properties. Early studies suggest that Indomethacin may help reduce viral replication and inflammation in patients with mild to moderate COVID-19. However, more research is needed to confirm its safety and effectiveness for this use. If you are considering Indomethacin for any off-label use, it’s crucial to discuss this with your healthcare provider. Our telemedicine providers can help you understand the latest research and make informed decisions about your health.

James Kingsley

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