Reusin

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

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 Reusin

Property Description
Active Ingredient Indometacin (Indomethacin)
Form Capsules, Suppositories, Gel/Cream, Suspension
Pharmacological Class Nonsteroidal Anti-Inflammatory Drug (NSAID)
General Purpose Relief from pain, inflammation, and fever
Origin Synthetic Indoleacetic acid derivative

What Type of Medicine is Reusin?

Reusin is a pharmaceutical preparation containing the active ingredient Indometacin (or Indomethacin), a synthetic, prescription-only medication that belongs to the potent class of Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). This classification identifies it as an agent intended to modulate the body’s signaling pathways for inflammation and pain. Indometacin is chemically defined as an Indoleacetic acid derivative, a structure that differentiates it from newer NSAIDs.

Composition and Forms of Indometacin

Reusin is a single active ingredient product, relying entirely on Indometacin for its therapeutic effects, combined with standard pharmaceutical excipients for formulation. Reusin specifically provides Indometacin in various dosage form(s), including oral capsules, suppositories, and topical gels, ensuring flexible routes of administration for systemic treatment. Indometacin is recognized for its role in decreasing inflammation and pain. This confirms that the medication is fundamentally designed to help relieve physical discomfort and reduce swelling.

General Purpose of an Anti-Inflammatory Agent

The core generalized purpose of Reusin is to produce a strong anti-inflammatory effect, analgesic effect (pain relief), and antipyretic effect (fever reduction). It functions as a powerful, non-selective Cyclooxygenase (COX) inhibitor, thereby blocking the synthesis of prostaglandins, which are key chemical mediators of inflammation and pain. This mechanism ensures the medicine tackles the inflammatory response at a foundational chemical level, providing comprehensive symptomatic relief.

Regulatory References

  1. MedlinePlus: Indomethacin Information

What side effects are possible with Reusin?

Possible Side Effects and Safety Information

Reusin, as a Non-Steroidal Anti-Inflammatory Drug (NSAID), has the potential to cause side effects, though not everyone experiences them. The risk and severity of side effects are often dependent on the dose and duration of use, as well as individual patient factors.


Common Side Effects

The most frequently reported adverse effects associated with NSAIDs primarily involve the gastrointestinal tract and may include:

  • Indigestion, heartburn, or stomach pain
  • Nausea, vomiting, or diarrhea
  • Headache and dizziness
  • Fluid retention (edema), which may manifest as swollen ankles.

Serious Side Effects

Although less common, more serious risks are associated with NSAID use, particularly with long-term treatment or high doses. Patients should seek immediate medical attention if they experience signs of:

  • Gastrointestinal Bleeding or Ulcers: Symptoms like severe stomach pain, black or tarry stools, or vomiting material that looks like coffee grounds.
  • Cardiovascular Events: NSAIDs may increase the risk of serious events such as heart attack or stroke, especially in individuals with existing heart disease or risk factors.
  • Kidney or Liver Problems: Signs may include unexplained weight gain, yellowing of the skin or eyes (jaundice), or a significant change in the amount or frequency of urination.
  • Allergic Reactions: Symptoms such as hives, difficulty breathing, or swelling of the face, lips, or throat.

Safety Precautions and High-Risk Groups

Patients with a history of stomach ulcers, gastrointestinal bleeding, heart failure, high blood pressure, or kidney disease are at a higher risk and should use Reusin only under strict medical supervision. Reusin should also be avoided during the third trimester of pregnancy. It is crucial to inform a healthcare professional about all other medications, supplements, or medical conditions before starting this treatment.

Overdose and Emergency Response

Reusin Overdose and When to Seek Help

The official regulatory profile for Indometacin (Reusin) overdose establishes a defined spectrum of toxicity and mandated emergency actions, strictly based on government-authorized prescribing information.


Documented Overdose Manifestations

Overdose manifestations are primarily associated with Central Nervous System (CNS) effects and Gastrointestinal (GI) disturbances. CNS symptoms documented in official labeling include severe headache, confusion, disorientation, lethargy, and restlessness. GI symptoms include nausea, vomiting, and severe abdominal pain.


Severe Outcomes and Mandated Emergency Action

Severe and life-threatening outcomes are documented in regulatory texts, including convulsions, potential coma, acute renal failure, and gastrointestinal bleeding. The official guidance mandates that patients seek immediate medical attention or contact a Poison Control Center immediately upon suspicion of overdose, as the risk of these severe manifestations requires urgent assessment and care. Urgent help is required when any sign of potential overdose occurs.


Management and Monitoring Requirements

No specific antidote is known for Indometacin, defining treatment as entirely symptomatic and supportive. Interventions documented to reduce systemic absorption include gastric lavage and the administration of activated charcoal. Hospital monitoring or observation is required, with close monitoring of vital signs and renal function being specifically mandated. Furthermore, regulatory documents identify that elderly patients are at an increased risk of serious outcomes.

Therapeutic Uses of Reusin

What Reusin Treats: Main Uses and Benefits

Reusin is generally used to provide supportive therapeutic benefit, primarily focused on addressing symptoms related to physical discomfort that interfere with daily functioning. Its application centers on offering short-term symptomatic support across domains where symptoms become temporarily intense or overwhelming.


Relief for Heightened Symptom Burden

Reusin is relevant in clinical settings marked by increased discomfort or tension and helps address symptom clusters that may become intense or disruptive. It is used to moderate these challenging symptomatic phases, offering short-term supportive relief and may assist patients during difficult episodes by easing distress. Common indications where Reusin is applied include conditions characterized by periods of heightened symptoms, recurrent or episodic manifestations, and situations involving significant symptomatic burden.

“Reusin is applicable in clinical settings that involve acute or unstable symptom patterns, assists with maintaining functional stability.”

The medication is commonly used to help with symptoms related to heightened physiological activity that create noticeable physiological strain, supporting general well-being during symptomatic phases.


Quick Fact: Symptom Support
Reusin supports patients during episodes of heightened discomfort by contributing to easing the overall symptom load.

Eligibility and Restrictions for Use

The eligibility for Reusin (Indometacin) is strictly defined by regulatory documents, classifying populations into allowed, contraindicated, and restricted groups. Use is generally established for adults who do not present with any specified exclusions.

Eligibility Classification Population Status
Contraindicated Prohibited for patients with known hypersensitivity to the medicine or a history of allergic reactions to aspirin or other NSAIDs. Use is also forbidden in the setting of Coronary Artery Bypass Graft (CABG) surgery, active gastrointestinal bleeding or ulceration, and severe heart, hepatic, or renal failure.
Not Recommended/Restricted Use is contraindicated in women starting at 30 weeks gestation (third trimester) and is not recommended for women who are breastfeeding. Safety and efficacy for the oral/rectal forms have generally not been established in children and adolescents, often defined as those under 14 years of age.
Conditional Use Greater caution is required for older adults, who may be at increased risk of serious adverse reactions. The medicine is also limited to conditional use in patients with advanced renal disease, controlled hypertension, or certain neuro-psychiatric conditions like epilepsy or Parkinsonism, as noted in the official labeling.

What should I know about interactions with other medicines?

Reusin Interactions with other medicines and products

The interaction profile for Indometacin (Reusin) is defined by documented effects on drug exposure and additive toxicity risk, consistent with government regulatory classifications.

The use of Indometacin is prohibited for treating peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery. Co-administration with Diflunisal is also contraindicated due to the associated risk of fatal gastrointestinal hemorrhage and documented significant increases in Indometacin plasma levels. Combining Indometacin with other NSAIDs, such as Ketorolac, is typically avoided due to cumulative risk of serious adverse events.

Indometacin can officially increase the serum concentration of several co-administered agents by reducing their renal clearance. This documented pharmacokinetic interaction applies to drugs like Lithium, Digoxin, and Methotrexate. Conversely, the co-administration of Probenecid causes a regulatory-noted increase in Indometacin plasma levels.

Pharmacodynamic interactions include an increased risk of bleeding when Indometacin is combined with anticoagulants, antiplatelets, or Aspirin. The drug may also diminish the antihypertensive effect of ACE Inhibitors, ARBs, and Diuretics. This diminished effect carries a greater risk for deterioration of renal function in elderly or renal impaired patients. Finally, Alcohol and Tobacco use are officially listed as factors that enhance the risk of serious gastrointestinal side effects.

Mechanism of Action

Inhibition of Inflammatory Chemical Signal Generators

The core mechanism involves the non-selective competitive inhibition of the Cyclooxygenase (COX-1 and COX-2) enzymes. The inhibition of these enzymes suppresses the biosynthesis of Prostaglandins and other chemical mediators within the Arachidonic Acid Cascade . This molecular action limits the generation of signals that mediate nociceptive input and contribute to increased vascular permeability.

Central Thermoregulation Pathway Adjustment

In addition to its peripheral actions, the drug exerts a specific effect on the brain's hypothalamus, the central regulator of body temperature. The mechanism prevents the production of Prostaglandin E2 (PGE2), a mediator that functionally elevates the body’s thermal set-point. This mechanism facilitates the promotion of heat dissipation resulting from the central adjustment of the thermoregulatory set-point.

Secondary Cellular Stabilization Mechanism

Beyond the primary enzyme block, the drug utilizes a unique, non-COX-mediated action that involves stabilizing the membranes of cellular components (lysosomes) within specific cell types. This secondary mechanism limits the release of hydrolytic enzymes, thereby modulating the cellular component of the inflammatory cascade.

Dosage and Administration Information

The official usage guidelines for Reusin (Indometacin) establish specific routes and regimens across various approved conditions. The medicine is administered via oral (Immediate-Release and Extended-Release capsules, oral suspension), rectal (suppositories), and, for strictly defined neonatal use, intravenous (IV) routes.

The standard adult dosing for chronic conditions, such as rheumatoid arthritis, begins with 25 mg two or three times daily. The total daily dosage may be titrated by 25 mg or 50 mg increments at weekly intervals, but should not exceed the maximum daily dose of 200 mg for immediate-release forms. For acute conditions like gouty arthritis, a dose of 50 mg three times daily is used temporarily, followed by a rapid dose reduction upon symptom control.

Treatment for acute painful shoulder (bursitis or tendinitis) typically lasts 7 to 14 days, with daily doses generally divided into three or four separate administrations. All oral formulations should be taken with food or immediately following meals to assist with intake tolerance. Capsules must be swallowed whole and should not be opened, crushed, or chewed.

Official instructions specify that the lowest dose for the shortest duration should be employed. For older adults, the lowest possible dose and frequency are recommended, and in the case of IV neonatal use, the dosing is strictly dependent on the infant's weight and postnatal age.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Reusin

Evidence for Symptomatic Patterns in Inflammatory Joint Conditions

The research base for Reusin (Indometacin) in studies examining symptomatic patterns in inflammatory joint conditions relies largely on short-term Randomized Controlled Trials (RCTs) and associated systematic reviews. This evidence was applied in studies examining patient-reported experiences of individuals diagnosed with conditions characterized by functional limitations, such as Rheumatoid Arthritis, Osteoarthritis, and Ankylosing Spondylitis. These trials typically focused on outcomes related to physical discomfort and daily functioning.

In these trials, research exploring how symptoms change over time included the evaluation of Reusin. Findings describe patterns observed in which studies reported measured values for pain intensity scores, joint swelling, and functional metrics over short time intervals. What remains uncharacterized is the data concerning long-term observations regarding underlying conditions in participants using Reusin. Long-term effects are not fully established by the existing controlled evidence.


Evidence for Use in Acute Pain and Symptomatic Flares

The evidence from studies where Reusin was included, examining acute symptomatic flares, such as acute gouty arthritis and acute painful shoulder conditions, is derived from short-term clinical trials. For acute gouty arthritis, Reusin was studied for its application during conditions involving periods of heightened symptoms. Findings indicate patterns in the rapid change of measured scores for localized pain, tenderness, and inflammation that were tracked during the flare-up phase. For acute painful shoulder, studies monitored outcomes such as localized pain and range of motion over defined time intervals.


Key Gaps and Areas of Research Uncertainty

One of the major gaps is the limited availability of extensive, controlled, long-term research that examines outcomes related to systemic or functional imbalance over many years. The evidence for chronic conditions focuses predominantly on symptomatic outcomes, meaning data regarding underlying disease progression were not the main focus of these studies. Furthermore, comparative evidence against newer therapeutic agents is limited, meaning the research mainly contributes to contextualizing short-term measured patterns under specific study conditions. Findings describe group patterns, not personal outcomes.

Key Studies & References

  1. Indomethacin: Drug Information
  2. Nonsteroidal Antiinflammatory Drugs (NSAIDs)
  3. Indomethacin for symptomatic relief of acute gout: a systematic review of the literature

Frequently Asked Questions (FAQ)

Common questions about Reusin (FAQ)

Q: How quickly should I expect Reusin to start working?

Clinical studies describe that initial symptomatic changes, such as reductions in pain or swelling, were observed in some individuals within the first week of use. However, the full measured therapeutic effect in chronic conditions may take several weeks to be fully appreciated.

Q: Will Reusin change how I feel day-to-day?

Regulatory documents list potential effects on the central nervous system (CNS) as possible side effects. Reported adverse effects related to the central nervous system include instances of headache, dizziness, and less frequently, mood changes. Changes in how a person feels are generally noted as potential adverse events.

Q: Does Reusin interact with herbal supplements?

Official sources note that caution is needed with certain herbal supplements. Some supplements may affect how the body processes Reusin or increase the risk of specific side effects, such as increased bleeding or stomach irritation. All supplements being taken should be reviewed by a healthcare provider, as noted in official guidance regarding potential interactions.

Q: Is Reusin considered a strong medicine?

Reusin is officially classified within the potent class of Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) and is recognized in regulatory texts for its powerful ability to block certain chemical signals. Its description as potent aligns with official usage guidelines that stress the importance of using the lowest effective amount for the shortest duration necessary.

Q: How does Reusin compare to similar drugs used for the same purpose?

Official documentation classifies Reusin as a Nonsteroidal Anti-Inflammatory Drug (NSAID) that differs from other members of the class through its specific chemical structure and defined profile. The medicine is intended to modulate the body’s signaling pathways for inflammation and pain.

Q: Is Reusin available as a generic version?

Yes, the active ingredient in Reusin, which is indometacin, has approved generic versions available. Generic availability generally depends on the specific country and the exact formulation or strength prescribed.

Q: Does Reusin require a special authorization from an insurance company?

In some government health programs, coverage for Reusin may require special authorization or the meeting of limited coverage criteria. These rules often depend on factors like a specific diagnosis or documented attempts with other standard treatments before the drug is covered.

Q: Can children or teenagers use Reusin?

Official labeling generally states that the safety and effectiveness of the oral and rectal forms of Reusin have not been fully established for children under 14 years of age. Official documents state that a healthcare provider should assess the appropriate dosage and supervision for adolescents aged 15 and older.

Q: What kind of evidence supports the use of Reusin?

Regulatory approvals are primarily based on evidence from short-term clinical trials. These studies generally demonstrated observed changes in symptomatic patterns related to pain, inflammation, and how well people could perform daily activities within the study period.

Q: Why do some people report not feeling any change when taking Reusin?

Official research indicates that individual response to this type of medication can vary among patients. Research has examined individual differences in how patients respond, noting variations in outcomes among individuals taking the medicine. Clinical studies report group patterns, not personal outcomes.

Q: Does Reusin affect sleep patterns?

Clinical literature includes studies that examine the drug’s potential influence on sleep. In some patients, the central nervous system effects of the medication may impact normal sleep patterns, which is a consideration noted in official drug information summaries.

Q: Does Reusin help with long-term issues or only short-term symptoms?

Regulatory documents state that Reusin is an effective anti-inflammatory agent appropriate for the long-term treatment of specific chronic conditions. Official usage guidelines generally reference using the lowest effective amount for the shortest duration necessary to manage symptoms, particularly when addressing long-term conditions.

Q: Can Reusin cause weight gain or weight loss?

Regulatory labeling lists fluid retention, known as edema, as a potential side effect associated with the medication's effect on the kidneys. This fluid retention may lead to unexplained weight gain. Official documents describe that significant or unexpected weight changes, especially those linked to swelling, are noted as symptoms that should be discussed with a healthcare professional.

Q: Is Reusin known to be addictive or habit-forming?

Reusin is not classified as a controlled substance by regulatory agencies and is not considered to be addictive or habit-forming according to official classifications in the United States.

Q: Can I drive a car or operate machinery while using Reusin?

The official labeling for Reusin advises users to exercise caution when driving or operating machinery. This is because the medication may cause side effects, such as dizziness, drowsiness, or confusion. The labeling indicates that side effects could influence one's capacity to operate machinery.

Q: How long after stopping Reusin does it stay in my system?

Pharmacokinetic data indicates that the medication has a plasma elimination half-life that averages approximately 4.5 hours in healthy adults. The body eliminates the drug primarily through a combination of kidney and liver processes.

Q: Can Reusin cause allergic reactions?

Yes, regulatory documents explicitly warn that Reusin can cause allergic reactions. The presence of a known allergy to Reusin or other similar medicines, such as aspirin, is listed in official documents as a condition where use is generally not advised.

Q: Are there any specific tests I need before starting Reusin?

Official use instructions advise that for patients who use the medication for long periods, regular monitoring of certain health indicators may be needed. Official documentation mentions that monitoring often includes checks of specific health indicators, such as kidney function and blood pressure, to watch for potential adverse effects.

Q: Is Reusin a new drug, or has it been around for a while?

The active ingredient in Reusin, indometacin, is a long-established medication. The original capsule formulation received initial regulatory approval in the United States dating back to 1965.

Q: Does Reusin contain gluten or common allergens?

The official labeling for specific formulations includes a full list of inactive ingredients, or excipients. Some excipients, such as certain coloring agents, are noted in official drug information summaries as having the potential to cause allergic reactions in sensitive individuals.

Q: Are the research studies on Reusin mostly short-term or long-term?

The research evidence used to support its initial regulatory approval is predominantly derived from short-term clinical trials. Official documents generally note that long-term effects regarding outcomes beyond symptom management are not fully established by this controlled evidence.

Q: Do regulatory agencies list Reusin as having a high potential for interaction?

Official information documents an extensive profile of drug interactions, with many other medications noted as potential interactants. This profile includes a significant number of interactions officially classified as major or moderate in clinical significance.

Q: How does Reusin affect the body's natural processes?

The primary mechanism is described as interfering with the body's natural process of creating prostaglandins. These are important chemical mediators responsible for transmitting signals of pain and inflammation throughout the body, helping to reduce the body’s inflammatory response.

Q: What happens if I take Reusin for longer than prescribed?

Official use instructions caution against taking the medicine for a longer time than directed by a healthcare provider. Longer duration of use is officially associated with an increased risk of serious adverse events, particularly those affecting the gastrointestinal tract and the cardiovascular system.

How should Reusin be stored and disposed of?

How to Store and Dispose of Reusin (Indometacin)

The storage and disposal instructions for Reusin are mandated by regulatory labeling to maintain drug stability and ensure safety.


Official Storage Conditions

Indometacin oral forms (capsules, suspension) must be stored at Controlled Room Temperature of 20 C to 25 C. The oral suspension must be protected from freezing and its bottle kept tightly closed.

Dosage Form Constraint Regulatory Requirement
Temperature 20 C to 25 C (68 F to 77 F)
Suspension Life Discard 35 days after dispensing
Child Safety Keep out of the sight and reach of children

Disposal Requirements

Unused or expired Reusin should be disposed of via an authorized drug take-back program. If a take-back program is unavailable, the product may be prepared for household trash by mixing it with an unappealing substance and sealing it. Disposal into wastewater systems is prohibited by regulatory guidelines.

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

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