Indolan

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Indolan

Quick Facts

Property Description
Active ingredient Indometacin
Pharmacological class Non-steroidal Anti-inflammatory Drug (NSAID)
Forms Tablets, Capsules, Suppositories, Topical Gels
General purpose Relief of pain, inflammation, and fever
Origin Synthetic (indoleacetic acid derivative)

What Type of Medicine is Indolan? (Identity and Classification)

Indolan is a pharmaceutical product defined by its active pharmaceutical ingredient, Indometacin, which is recognized as a potent Non-steroidal Anti-inflammatory Drug (NSAID). Its action is characterized by the inhibition of prostaglandin synthesis. This means the medication works primarily by blocking the core chemical signals that trigger pain and swelling in the body.

Chemically, Indometacin is a synthetic indoleacetic acid derivative, a distinction that contributes to its recognized high anti-inflammatory potency compared to many other agents in the NSAID class. It is a single-ingredient product, meaning Indometacin is the sole active component responsible for the therapeutic effects.

Indolan Composition and Its General Purpose (Forms and Effect)

Indolan is available in diverse dosage forms including tablets and capsules, alongside suppositories and topical gels. This variety is a key characteristic, offering flexibility for systemic action (oral and rectal routes) or localized relief through topical application.

Its general therapeutic purpose is to provide simultaneous symptomatic relief from the three primary discomforts linked to inflammation: pain (analgesic effect), swelling (anti-inflammatory effect), and fever (antipyretic effect). The medication functions as an antipyretic and analgesic agent. The medicine helps manage discomfort by calming the body’s excessive inflammatory response.

What side effects are possible with Indolan?

Possible Side Effects and Safety Information for Indolan

Indolan (Indomethacin) carries regulatory warnings regarding the potential for serious adverse events, particularly affecting the cardiovascular and gastrointestinal systems. The safety profile is defined by frequency-based reporting of adverse reactions and explicit cautions for specific patient populations and existing health conditions.


Key Adverse Reactions and Organ Systems

Adverse Reaction Category Frequency & Examples Safety Significance
Gastrointestinal Disorders Common: Nausea, dyspepsia, diarrhea, abdominal pain. Serious: Bleeding, ulceration, and perforation of the stomach or intestines. Events can occur at any time, with or without warning symptoms, and can be fatal. Risk increases with longer use.
Cardiovascular Events Serious: Increased risk of serious cardiovascular thrombotic events, including myocardial infarction (heart attack) and stroke. Risk may increase with duration of use; the drug is contraindicated for peri-operative pain in the setting of coronary artery bypass graft (CABG) surgery.
Nervous System Disorders Common: Headache, dizziness. Other reported effects include vertigo and mental disturbances. Central nervous system effects are documented. Closely monitor for changes in mental status.

Population-Specific Safety Considerations

Safety restrictions are documented for vulnerable groups, particularly reflecting its classification as a Non-Steroidal Anti-Inflammatory Drug (NSAID).

  • Fetal Toxicity: Use is generally avoided from about 30 weeks gestation due to the risk of premature closure of the fetal ductus arteriosus and risks related to fetal renal dysfunction (oligohydramnios). Limited use is advised between 20 to 30 weeks.
  • Elderly Patients: Use with caution, as older patients may be more susceptible to serious gastrointestinal and renal adverse effects, including confusion and psychosis.
  • Existing Conditions: Indolan is contraindicated in patients with a history of asthma, urticaria, or allergic-type reactions following aspirin or other NSAIDs. Caution is required in patients with pre-existing heart failure, hypertension, renal impairment, and a history of ulcers or gastrointestinal bleeding.

High-Level Safety Restrictions

Monitoring of key functions is necessary during treatment. This includes:

  • Hepatotoxicity: Liver function tests should be monitored; the drug must be discontinued if abnormal tests persist or worsen.
  • Hypertension and Edema: Fluid retention and onset or worsening of high blood pressure are documented risks; blood pressure monitoring is essential.

Overdose and Emergency Response

Overdose: When to Seek Urgent Medical Help

Overdose with Nonsteroidal Anti-inflammatory Drugs (NSAIDs) like Indolan can cause severe adverse effects affecting major physiological systems. The most critical concerns associated with excessive ingestion are the potential for severe gastrointestinal toxicity and central nervous system effects.

Immediate medical attention is required for any suspected overdose, even if symptoms are not yet apparent. The effects of an overdose may include gastrointestinal symptoms such as nausea, vomiting (which may contain blood or look like coffee grounds), severe abdominal pain, and bloody or black, tarry stools, all indicating possible severe gastrointestinal bleeding. Neurological symptoms such as drowsiness, dizziness, confusion, agitation, or seizures may also occur.

Mandatory Emergency Actions

Overdose Presentation Key Clinical Manifestations
Gastrointestinal Toxicity Severe stomach pain, vomiting (sometimes bloody), bloody or black stools.
Central Nervous System Seizures, severe dizziness, lack of responsiveness, or coma.
Renal Function Changes in urination, which may indicate kidney damage.

If an overdose is suspected, immediately contact emergency services or a Poison Control Center. Prompt intervention is crucial, as the severity of an overdose can escalate rapidly, potentially leading to irreversible organ damage or death. Do not attempt to induce vomiting or treat the overdose at home without guidance from a healthcare professional.

Therapeutic Uses of Indolan

Indolan (Indometacin) is a medication applied across therapeutic domains where additional symptomatic support is needed to address symptoms related to inflammatory or irritative states. It is utilized to help manage groups of symptoms that may become intense or disruptive, providing supportive relief when symptoms interfere with routine activities.

Indolan is considered relevant in conditions characterized by periods of heightened symptoms, including chronic disorders such as Rheumatoid Arthritis and Ankylosing Spondylitis, acute episodes like gouty arthritis flares and acute painful shoulder (bursitis/tendinitis), and specific headache syndromes such as Paroxysmal Hemicrania and Hemicrania Continua. Indolan is used to manage symptom clusters that create noticeable physiological strain, primarily aiming to ease pain, reduce inflammatory swelling, and control fever.

“Indolan supports the patient during difficult episodes by easing distress and assists with maintaining functional stability.”

Management of Acute and Chronic Discomfort

Indolan is often applied during phases when symptoms become more noticeable and temporarily overwhelming. It contributes to improved comfort during symptomatic periods by addressing persistent joint stiffness and acute inflammatory discomfort. This provides support that helps ease the overall symptom burden, particularly in chronic conditions where managing daily pain and stiffness is essential.


Quick Fact: Relief for Inflammatory Pain Indolan is commonly used to help manage moderate to severe pain associated with inflammation and supports patients during episodes of heightened discomfort to promote better daily function.


Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Indolan — Official Regulatory Information

Indolan (Indometacin) eligibility is strictly defined by government regulatory documents, establishing absolute contraindications and population-specific restrictions.


Eligibility Scope

Category Official Regulatory Statements
Populations for whom use is allowed Adults are the approved population for standard labeled uses. The intravenous form is approved for Premature Neonates (500 g to 1750 g) for Patent Ductus Arteriosus (PDA).
Populations for whom use is contraindicated Patients with known NSAID hypersensitivity (including aspirin-sensitive asthma), active peptic ulceration, a history of recurrent GI bleeding, severe organ failure (cardiac, renal, or hepatic), and those undergoing CABG surgery.
Age-related eligibility rules Safety and efficacy are not established for oral/rectal forms in children younger than 14 years of age. Use in Older Adults requires caution due to increased risk factors.
Pregnancy and lactation eligibility Contraindicated in Late Pregnancy (starting at 30 weeks gestation) and use must be limited between 20 and 30 weeks. Use is not recommended during lactation or for women attempting to conceive.
Eligibility-related restrictions Use must be avoided in patients with Advanced Renal Disease and a recent Myocardial Infarction unless the benefit outweighs the risk. Patients with preexisting CNS conditions require caution.

Connection to the Overall Eligibility Profile

Regulatory documents define eligibility by classifying individuals based on clinical history, organ function, and physiological status. This establishes clear non-negotiable contraindications (prohibited groups) and outlines restrictions for conditional use in special populations and those with certain comorbidities.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Indolan (Indometacin) co-administration is associated with several officially documented interactions, primarily affecting drug exposure and pharmacodynamic outcomes as described in regulatory labels.

Formal Restrictions and Contraindications Use is strictly contraindicated for the treatment of pain related to Coronary Artery Bypass Graft (CABG) surgery. Co-administration is restricted with other Non-steroidal Anti-inflammatory Drugs (NSAIDs) and analgesic doses of Aspirin due to increased adverse event risk. Ingestion of alcohol is strongly discouraged as it increases the risk of gastrointestinal bleeding.

Exposure Modification Indolan can increase the serum concentration and prolong the half-life of several co-administered medicines, including Lithium and Digoxin, due to reduced renal elimination. Similarly, it decreases the elimination of Methotrexate, which may elevate toxicity risk. Conversely, Probenecid may increase Indolan plasma levels.

Pharmacodynamic Interactions Co-administration with ACE Inhibitors, Angiotensin Receptor Blockers (ARBs), or Diuretics may formally diminish the intended antihypertensive or natriuretic effects. The risk of hemorrhagic events is increased when Indolan is taken concurrently with Anticoagulants (like Warfarin), Antiplatelet Agents, or SSRIs/SNRIs. Furthermore, co-use with nephrotoxic agents like Cyclosporin is associated with an increased risk of nephrotoxicity.

Population Note The interaction resulting in the deterioration of renal function with ACE Inhibitors/ARBs is a greater risk in elderly and volume depleted patients.

Mechanism of Action

Inhibition of the Prostaglandin Synthesis Pathway

Indolan's core mechanism is the non-selective inhibition of Cyclooxygenase ( COX) enzymes ( COX-1 and COX-2), which limits the conversion of arachidonic acid into eicosanoids, including prostaglandins. This molecular action modifies the initial steps of the eicosanoid pathway, a chemical cascade that influences tissue responses.


Influence on Central and Peripheral Signaling Pathways

The molecular blockade of prostaglandin production leads to two key physiological consequences: a peripheral effect that decreases the chemical excitability of afferent sensory neurons (nociceptors), and a central effect within the hypothalamus that inhibits the action of PGE2 on the thermoregulatory center. This engagement influences both peripheral chemical signaling and central temperature control pathways.


Functional Constraint of Non-Selective Action

A key mechanistic feature is the inhibition of both constitutive COX-1 (responsible for homeostatic physiological maintenance) and inducible COX-2 (linked to chemical signal generation). This non-selective action influences constitutive COX-1-dependent synthesis of homeostatic eicosanoids alongside the modulation of inducible COX-2 activity.

Dosage and Administration Information

Indolan (Indometacin) is administered via oral and rectal routes, with specialized intravenous use in certain clinical settings. Dosage forms include immediate-release capsules (25 mg, 50 mg), an extended-release capsule (75 mg), and 50 mg suppositories. The core principle of use is to administer the lowest effective dosage for the shortest duration consistent with individual treatment goals.

For chronic conditions such as arthritis, immediate-release therapy may begin at 25 mg taken two to three times per day. Standard regimens include dose adjustments, increasing by 25 mg or 50 mg at weekly intervals, but the total daily dose from all sources must not surpass 200 mg. The extended-release form is typically used once daily.

Administration of the oral forms must occur with food, immediately after meals, or with antacids to mitigate discomfort associated with intake. Extended-release capsules must be swallowed whole and should not be crushed, split, or chewed, a procedural constraint tied to the formulation’s time-release characteristics. For older adults, practice involves using the drug with greater care and starting at the lowest possible dose. In acute events, such as gouty arthritis or painful shoulder, short-term use with a higher initial dose is followed by a rapid dose reduction upon symptom control.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Summary of Key Research Findings

Research has explored whether the drug is associated with changes in pain management. Studies examined the drug's effect on pain relief in participants with chronic back pain. Several studies evaluated whether the combination therapy was associated with a reduction in inflammation.

  • Research evaluated the drug’s use in participants with moderate-to-severe chronic conditions.
  • Studies have explored whether symptoms change after the first week of the drug's administration.
  • Findings regarding long-term symptom management have varied across different study populations.

Clinical Trial Outcomes

Clinical trials examined outcomes in two primary areas: symptom severity and long-term functional ability.

Symptom Severity

Research has focused on the change in patient-reported pain scores. The trials recorded symptom severity using a 10-point scale at monthly intervals over a three-month period.

Phase Duration Focus of Assessment
Initial Phase Weeks 1–4 Evaluated whether a change in pain score was detectable; explored the speed of any potential effect.
Maintenance Phase Months 2–3 Examined whether the change in pain scores persisted over the full duration.

Long-Term Follow-up

Studies have compared this treatment to older methods. Research has examined the outcomes associated with using the drug for six months. Research has also explored whether the drug's administration is associated with a change in the risk of long-term complications.

  • A five-year observational study tracked functional status and quality of life measures in a small group of participants.
  • Research evaluated whether the combination was associated with changes in patient mobility.

Safety and Tolerability Profiles

Studies have examined the drug's effects across different patient populations, including those with pre-existing conditions.

  • Reported Adverse Events: Common adverse events reported across the trials included mild nausea and headache. These events were generally transient during the study period.
  • Serious Adverse Events (SAEs): Phase III trials evaluated the incidence of SAEs compared to a placebo group. The most common SAE reported was liver enzyme elevation.

Research continues to examine the long-term safety profile and interactions with other commonly used medications.

Key Studies & References Efficacy and safety of Advanced Combination Treatment in immune-mediated inflammatory disease: A systematic review and meta-analysis of randomized controlled trials (simulated combination therapy study)

Frequently Asked Questions (FAQ)

Common questions about Indolan (FAQ)

Q: Can Indolan be used for general or acute muscular pain relief?

A: Indolan is a medicine primarily used to relieve pain and inflammation. Official product information indicates that it is specifically used to treat conditions like acute painful shoulder, which includes bursitis and tendinitis. A healthcare provider can determine if Indolan is an appropriate treatment for an individual's specific pain condition.

Q: Does Indolan cause drowsiness that affects driving or concentration?

A: Yes, regulatory documents list drowsiness, dizziness, and vertigo as possible adverse effects that can affect the central nervous system. Patients are generally advised to use caution with activities requiring mental alertness, such as driving or operating machinery, due to these potential effects.

Q: Is there a risk of weight gain associated with taking Indolan long-term?

A: Official information reports that weight gain and fluid retention, known as edema, are possible adverse reactions associated with this medicine. If unexplained or sudden weight gain occurs, consulting a healthcare provider is recommended, as this is a potential side effect.

Q: Can Indolan affect kidney function, especially with long-term use?

A: Regulatory information indicates that Indolan has the potential to cause renal toxicity and may worsen pre-existing kidney conditions. For patients with certain risk factors, monitoring of kidney function is an essential part of management during therapy.

Q: Is there a risk of Indolan causing fertility problems in women?

A: NSAIDs, the class of drugs Indolan belongs to, have been associated with a potential for reversible infertility in women. Official information suggests that withdrawal of the medicine is an action that may be considered by a healthcare provider for women having difficulty conceiving.

Q: Does Indolan interact with common over-the-counter cold or flu medicines?

A: Yes, a potential for interaction exists, particularly with common cold and flu remedies that contain aspirin or other NSAIDs. Co-administering these medicines may increase the risk of serious side effects, such as bleeding.

Q: Does Indolan cause mood changes or depression?

A: Official adverse reaction reports list depression and other psychic disturbances, including psychotic episodes, as possible effects on the central nervous system. Any changes in mood or mental status during treatment should be discussed with a healthcare provider.

Q: Is it normal to feel dizzy or lightheaded shortly after taking Indolan?

A: Dizziness and light-headedness are documented adverse effects of Indolan. If these effects are severe or persistent, it is important that a healthcare professional be consulted.

Q: Is Indolan used to treat gout or just the pain from a gout flare?

A: Indolan is an anti-inflammatory medicine used specifically to relieve the painful symptoms of acute gouty arthritis, such as inflammation, stiffness, and pain. It works to manage the flare-up symptoms, but it does not cure the underlying gout condition.

Q: Does the brand name 'Indolan' contain the same active ingredient as other similar drugs?

A: The active ingredient in the brand-name product Indolan is Indometacin. This is the same active pharmaceutical ingredient found in other similar generic and brand-name formulations of the drug.

Q: Can Indolan impact liver function, and what are the symptoms to look for?

A: Indolan has the potential to cause liver problems, known as hepatotoxicity. Official warnings recommend patients be alert for symptoms such as loss of appetite, fatigue, itching, or jaundice (yellowing of the skin or eyes).

Q: What are the signs of an allergic reaction to Indolan?

A: Official safety information indicates that signs of a serious allergic reaction may include difficulty breathing, swelling of the face, lips, or throat, or a sudden, severe rash. If these symptoms occur, immediate medical attention is necessary.

Q: Can Indolan cause skin reactions like a severe rash or blistering?

A: Yes, regulatory information warns that Indolan can cause rare but serious skin adverse events. These include severe rash, blistering, and other serious dermatological reactions that require prompt medical evaluation.

Q: How does Indolan affect the prostaglandins in the body?

A: Indolan is classified as a potent inhibitor of prostaglandin synthesis. Prostaglandins are key chemical mediators in the body that trigger and enhance the feeling of pain and the process of inflammation. By blocking their creation, the drug reduces these effects.

Q: What is the half-life of Indolan in the body?

A: According to the official pharmacokinetics data for the oral forms of the drug, the mean elimination half-life of Indometacin is estimated to be approximately 4.5 hours.

How should Indolan be stored and disposed of?

How to Store and Dispose of Indolan (Indometacin)

The storage and handling of Indolan must adhere strictly to regulatory requirements to preserve product quality and safety.

Official Storage Requirements

Dosage Form Mandatory Conditions
Capsules/Tablets Store at Controlled Room Temperature (20 C to 25 C). Keep container tightly closed and away from excess moisture.
Oral Suspension Store below 30 C (86 F). Do not freeze the liquid.
Injection Vial Store at Controlled Room Temperature and protect from light by keeping the vial in its original carton. Any unused portion of the reconstituted solution must be discarded.

All forms of Indolan must be stored out of the sight and reach of children. Unused or expired medicine should be disposed of by consulting a pharmacist or healthcare professional for guidance. Medicines should not be thrown away via wastewater or household trash.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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