Rothacin

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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 Rothacin

Property Description
Active ingredient Indometacin (Indomethacin)
Form Oral Capsule, Suppository, Suspension, Ophthalmic Solution
Pharmacological class Nonsteroidal Anti-inflammatory Drug (NSAID)
Common use Symptomatic relief of pain, inflammation, and fever
Origin Synthetic (Indole-acetic acid derivative)

Pharmacological Identity and Composition

Rothacin is a prescription-only nonsteroidal anti-inflammatory drug (NSAID) whose active substance is the molecule Indometacin (Indomethacin). It is classified pharmacologically as an indole-acetic acid derivative, chemically distinguishing it from other NSAID types like propionic acid derivatives. This potent compound is synthetic, having been developed for a highly targeted action. Rothacin is manufactured as a single-ingredient product, ensuring that the therapeutic focus is entirely on the potent activity of Indometacin, which is clinically recognized for its powerful effect in controlling inflammatory processes.


Types and Forms of the Indometacin Preparation

Rothacin is provided in a diverse range of dosage form(s), reflecting its specialized use cases. These include immediate and extended-release oral capsules, an oral suspension, and a suppository for rectal administration. Further differentiation is seen in specialized preparations like the ophthalmic solution and an intravenous formulation, which extend its utility beyond standard oral delivery. These various forms ensure the active Indometacin compound is delivered effectively via the required route of administration, whether systemic or local. These preparations are utilized for the management of pain associated with inflammation.


General Action and Therapeutic Purpose

The general therapeutic purpose of Rothacin is to deliver a robust analgesic, anti-inflammatory, and antipyretic effect for the symptomatic management of pain and swelling. The medication works by interrupting the body's production of prostaglandins, which are key substances that drive these symptoms. This targeted mechanism principle means the medicine generally helps to ease discomfort, reduce puffiness, and lower elevated body temperature, addressing the physical manifestations of inflammatory states.

Regulatory References

  1. Indomethacin: Drug Information

What side effects are possible with Rothacin?

Possible Side Effects and Safety Information

The safety profile of Rothacin, whose active substance is Indometacin, is formally classified by regulatory authorities according to the risks inherent to Nonsteroidal Anti-inflammatory Drugs (NSAIDs) and specific features of the compound.


Adverse Reaction Classification

Adverse reactions are grouped by the physiological system they affect. Common events often involve the Gastrointestinal disorders (e.g., dyspepsia, nausea) and the Nervous System disorders. Officially documented common effects include headache and dizziness, which are often reported to occur most frequently early in treatment.

System-Organ Class Examples of Documented Adverse Reactions
Gastrointestinal Ulceration, bleeding, and perforation
Cardiovascular Hypertension, fluid retention, thrombotic events
Nervous System Headache, dizziness, mental confusion, vertigo

Serious Adverse Reactions and Safety Constraints

Rothacin carries a mandated regulatory warning for the risk of Serious Cardiovascular Thrombotic Events (including myocardial infarction and stroke) and Serious Gastrointestinal Adverse Events (including bleeding and perforation), which can be fatal and may increase with the duration of use.

Specific safety constraints limit use in certain clinical contexts. The medicine is contraindicated for the relief of pain in the setting of coronary artery bypass graft (CABG) surgery and during the third trimester of pregnancy due to fetal risk. Older adults are officially noted to be at a greater risk for these serious gastrointestinal and cardiovascular events.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for a Rothacin (Indometacin) overdose describes a spectrum of clinical manifestations and outlines immediate required actions.

Scope Manifestation and Risk
CNS and GI Effects Signs may include severe headache, confusion, drowsiness (somnolence), nausea, and stomach pain or diarrhea.
Severe Outcomes Officially documented risks include acute renal failure, seizures, progression to coma, and potentially fatal gastrointestinal bleeding, ulceration, or perforation.
Population Note Elderly patients are at greater risk for developing serious GI adverse events following overdose exposure.

Emergency Action and Management

Any suspected or known overdose requires the immediate action to seek medical help right away and contact emergency services or a poison control center, as mandated by official labeling. Management is strictly symptomatic and supportive because no specific antidote is known. Procedures to limit absorption, such as activated charcoal or gastric lavage, may be implemented, along with continuous monitoring of vital signs and organ function. Specific interventions like dialysis for severe kidney damage or blood transfusion for significant bleeding may be required based on clinical necessity.


The regulatory documentation defines the overdose profile by establishing these neurological, GI, and renal manifestations, emphasizing the possibility of life-threatening severe outcomes which trigger the immediate need for emergency medical attention.

Therapeutic Uses of Rothacin

What Rothacin Treats: Main Uses and Benefits

Rothacin is commonly used to provide symptomatic relief across several domains marked by inflammation, pain, and fever. It is relevant in clinical settings that involve acute or unstable symptom patterns, where its therapeutic uses fall into several key clusters.

The medication is commonly used to help manage the pronounced symptoms of chronic inflammatory arthritis (like Rheumatoid Arthritis, Ankylosing Spondylitis, and Osteoarthritis), as well as provide short-term assistance during acute painful episodes such as gouty arthritis and localized inflammation (like bursitis or tendinitis).

“Rothacin is applied when symptoms create noticeable functional strain, supporting patients during difficult episodes by easing distress.”

The medication also has specialized uses in reducing high fever and managing specific indometacin-responsive headache syndromes. Furthermore, in neonatology, its use is considered relevant for managing the symptomatic manifestations of a Patent Ductus Arteriosus (PDA) in premature infants, providing supportive relief in contexts involving heightened systemic burden.


Quick Fact: Symptomatic Management of Inflammation
Rothacin is commonly used to help manage the cluster of symptoms associated with active inflammation, including joint pain, swelling, tenderness, and persistent morning stiffness, which supports general well-being during symptomatic phases.

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Rothacin (Indometacin) — Official Regulatory Information

This section defines the official population eligibility and non-eligibility information for Rothacin (Indometacin), strictly based on authoritative government regulatory documents.


Populations for Whom Use is Contraindicated

Rothacin is contraindicated in several high-risk patient populations, as defined in official labeling. These absolute exclusions include individuals with a known history of hypersensitivity to indometacin or any component of the drug. Use is also prohibited in patients who have a history of asthma, urticaria, or allergic-type reactions after taking aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs).

Furthermore, the medicine must not be used in the setting of Coronary Artery Bypass Graft (CABG) surgery, in patients with active gastrointestinal bleeding, ulceration, or perforation, or in cases of severe uncontrolled heart failure.


Age- and Condition-Based Restrictions

Category Regulatory Status
Pediatric Use (Oral/Suppository) Safety and efficacy not established in children younger than 14 years of age.
Older Adults (Geriatric) Require caution due to increased risk of serious gastrointestinal events.
Pregnancy (Third Trimester) Contraindicated (from 30 weeks gestation).
Severe Organ Impairment Avoid use in advanced renal disease and severe liver disease.

Official documents advise caution when using Rothacin in patients with pre-existing conditions such as Parkinson's disease or a history of certain psychiatric disturbances.

What should I know about interactions with other medicines?

Rothacin's interaction profile is strictly defined by regulatory documents, focusing on pharmacodynamic and pharmacokinetic constraints. Absolute restrictions exist for certain combinations. Co-administration with Ketorolac is contraindicated due to an elevated risk of toxicity. Combining Indometacin with Diflunisal must not occur as this interaction critically increases Indometacin's plasma concentration and decreases its renal clearance, which is associated with documented severe gastrointestinal hemorrhage.

The drug significantly alters the clearance of several medications. It elevates the systemic exposure and toxicity risk of Methotrexate by decreasing its tubular secretion, and it inhibits the renal excretion of Lithium, leading to dangerously increased serum levels. Furthermore, Indometacin can increase the concentration and prolong the half-life of Digoxin.

In terms of functional interactions, Indometacin diminishes the therapeutic effects of Antihypertensives (ACE Inhibitors, ARBs) and various Diuretics. It also enhances the activity of Anticoagulants like Warfarin, increasing the documented risk of bleeding. The risk of hyperkalaemia is associated with concomitant use of Potassium-sparing Diuretics. Lastly, regulatory documents note that Alcohol and Smoking may increase the documented risk of gastrointestinal ulceration and blood loss. Cautions regarding the deterioration of renal function with ACE Inhibitors/ARBs are noted for the elderly and volume-depleted populations.

Mechanism of Action

Inhibition of Enzymes and Inflammatory Mediator Synthesis

The core action involves the non-selective inhibition of Cyclooxygenase (COX) enzymes. By blocking the COX-1 and COX-2 enzymes, Indometacin fundamentally interrupts the Arachidonic Acid Cascade, thereby limiting the synthesis of prostaglandins—chemical mediators that promote nociception and increase vascular permeability. This molecular step results in a marked reduction in localized exudate formation and decreases the excitability of peripheral nociceptors.


Central Pathway Interaction and Thermoregulation Modulation

A second domain involves direct activity within the central nervous system (CNS). Indometacin is highly lipid-soluble, allowing it to rapidly modulate pathways in the brain, notably the hypothalamus. Here, it suppresses the prostaglandin-driven signaling that artificially elevates the body's thermoregulatory set point. This action resets the central set point, which engages mechanisms that dissipate core heat. The drug also engages in non-COX actions, such as positive allosteric modulation of CB1 receptors, contributing to central pain signaling modulation.


Cellular Stabilization and Non-COX Mechanistic Effects

Beyond enzyme inhibition, Indometacin also acts at the cellular level by promoting the stabilization of lysosomal membranes. This interaction results in the stabilization of lysosomal membranes, limiting the release of destructive hydrolytic enzymes within the cell. This mechanism contributes to the modulation of the inflammatory process and complements the primary pathway inhibition.

Dosage and Administration Information

Rothacin (Indometacin) is used through several approved routes of administration, including oral (capsule and suspension), rectal (suppository), and a specialized intravenous (IV) injection used only in specific hospital settings. The overarching usage principle is to administer the lowest effective dosage for the shortest necessary duration to manage symptoms.

Oral forms are typically taken with food, milk, or an antacid to mitigate potential gastrointestinal discomfort. For chronic inflammatory conditions, the immediate-release dosage usually starts at 25 mg two or three times daily. Dosing is then increased cautiously by 25 mg or 50 mg at weekly intervals, with the total daily dose not exceeding 200 mg. Acute regimens, such as for gouty arthritis, require a higher initial dose that is rapidly reduced to cessation once the episode subsides.

The medication must be administered precisely based on its form. Extended-release capsules must be swallowed whole and never crushed or chewed. Additionally, population-specific instructions mandate that older adults and patients with impaired kidney or liver function use a lower daily dosage to help prevent drug accumulation. If a dose is missed, it should be skipped if it is almost time for the next scheduled dose, strictly avoiding double doses.

Recent Clinical Evidence

Research Evidence / Overview of studies for Rothacin

Evidence for Symptom Management in Chronic Inflammatory Arthritis

Research for conditions like Rheumatoid Arthritis, Ankylosing Spondylitis, and Osteoarthritis was conducted in the form of controlled clinical trials and systematic reviews. This research was used in studies exploring how symptoms change over time in patients with conditions presenting with cycles of stability and flare-ups. Research examined outcomes related to physical discomfort, such as joint pain scores, and outcomes reflecting daily functioning, including the duration of morning stiffness and measurements of mobility.

Research findings describe patterns observed in the studies related to measured changes in pain and stiffness. Some controlled studies reported measurements of symptomatic changes in the observed populations compared to the control groups. The research base offers limited information for long-term outcomes regarding the sustained measurement of symptomatic changes beyond intermediate follow-up periods.

Evidence for Managing Acute Painful Episodes

Research into acute inflammatory conditions, such as acute gouty arthritis, was primarily driven by short-term Randomized Controlled Trials (RCTs). These studies were relevant in trials assessing episodic symptom patterns associated with acute or disruptive episodes. Studies monitored rapid changes in outcomes including measurements of pain intensity and the resolution of physical signs of inflammation.

Evidence for Specialized Uses in Neonatal Care and Prophylaxis

For premature infants, research was conducted via RCTs and meta-analyses to examine the closure of a Patent Ductus Arteriosus (PDA). Studies exploring temporary physiological imbalance reported measurements of ductal closure rates. However, when examining long-term outcomes, such as neurodevelopmental status, findings were mixed across studies, and certainty remains low.

Research has also been conducted for the prophylaxis of Post-ERCP Pancreatitis in specific high-risk adults. This involved multicenter RCTs focusing on a single dose administered around the time of the procedure. Research examined outcomes related to the incidence of pancreatitis in the studied groups.

What is Still Uncertain About Rothacin Research

Follow-up durations were limited for many indications. Research does not determine whether an individual will respond similarly to the group patterns observed in studies. Findings describe group patterns, not personal outcomes. The research is limited to the symptomatic relief of conditions involving periods of heightened symptoms; research has not explored whether the medicine affects the underlying mechanisms that cause the disease to progress.

Frequently Asked Questions (FAQ)

Common questions about Rothacin (FAQ)

Q: How long does Rothacin stay in your system after taking it?

According to regulatory documents, the highest concentration of the active substance in the blood is typically reached around two hours after an oral dose. This time reflects how quickly the medicine is absorbed into the system.

Q: What are the official guidelines for stopping the use of Rothacin?

Official information describes the approach to stopping use primarily in the context of acute painful episodes, such as gouty arthritis. For these conditions, the dose is rapidly reduced until the medicine is discontinued once the episode subsides.

Q: What is the difference between the active ingredient and the inactive ingredients in Rothacin?

Rothacin's active ingredient is Indometacin, which is the compound responsible for the therapeutic effect. The medicine also contains various inactive ingredients, such as gelatin and lactose in capsule forms, which are necessary for the product’s physical structure and delivery.

Q: Is Rothacin a non-addictive medication?

According to regulatory documents, Rothacin is classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). It is not designated as a controlled substance by regulatory bodies, and there are no official reports of dependence associated with its use.

Q: Is Rothacin the same type of medicine as other common treatments for this condition?

Rothacin belongs to the Nonsteroidal Anti-inflammatory Drug (NSAID) class of medicines. Chemically, official documents classify it as an indole-acetic acid derivative, which distinguishes it from other types of NSAIDs like propionic acid derivatives.

Q: What happens if a person accidentally takes Rothacin with alcohol?

The official regulatory documents note that the consumption of alcohol may increase the documented risk of gastrointestinal ulceration and blood loss. This concern is based on the known effects of both alcohol and NSAIDs on the stomach lining.

Q: Does Rothacin have a warning about driving or operating heavy machinery?

Official safety information advises caution regarding activities that require full mental alertness, such as driving or operating heavy machinery. This caution is based on documented common side effects, which include headache and dizziness.

Q: Is Rothacin a suitable treatment option for older adults?

Regulatory documents indicate that older adults are noted to be at a greater risk for serious side effects, particularly involving the cardiovascular and gastrointestinal systems. For this reason, official information notes the need for caution, and a lower daily dosage may be used in this population.

Q: What is the official statement regarding Rothacin's safety classification?

The safety profile is formally classified according to the risks inherent to all Nonsteroidal Anti-inflammatory Drugs (NSAIDs). The medicine also carries a mandated regulatory warning for the potential risk of serious cardiovascular and gastrointestinal events.

Q: Why is Rothacin only available by prescription?

Rothacin is officially classified by global regulatory bodies as a prescription-only medicine (Rx-only). This status is generally given to medicines that require professional medical supervision for safe and appropriate use.

Q: How was Rothacin discovered or first researched?

Historical regulatory data indicates that the active ingredient, Indometacin, was first discovered in 1963. The compound was then approved for initial use in the United States in 1965 after relevant research.

Q: Can taking Rothacin impact energy levels or cause fatigue?

Officially documented adverse reactions have included rare reports of extreme fatigue or unusual weakness. These effects are part of the detailed safety profile outlined in the official prescribing information.

Q: What research evidence supports the use of Rothacin?

Research evidence supports the use of Rothacin for the symptomatic management of chronic inflammatory arthritis and acute painful episodes, such as gouty arthritis. Studies have also explored its specialized use for the closure of a Patent Ductus Arteriosus (PDA) in premature infants.

Q: Is Rothacin available for use in countries outside the US?

The active ingredient in Rothacin is subject to regulatory approval and classification in many countries around the world. Official labeling information and legal status are noted in regions including Canada, the UK, Australia, and the US.

Q: Why does the official document list a particular group of people who cannot use Rothacin?

The official list of populations for whom use is contraindicated is based on documented evidence of increased risk. This includes individuals with a history of hypersensitivity to the drug or those who face an elevated risk of severe adverse events, such as serious gastrointestinal bleeding.

Q: Is it safe to use Rothacin if I am also taking an over-the-counter pain reliever?

Regulatory documents note that combining Rothacin, which is an NSAID, with other medications that increase the risk of bleeding or toxicity note the need for strict caution. This is because multiple compounds can combine to elevate the overall risk of adverse events.

Q: Does Rothacin affect a person's blood pressure or heart rate?

Regulatory information notes that the medicine can lead to the onset of new hypertension, which is high blood pressure, or the worsening of existing hypertension. The cardiovascular section also includes warnings for the risk of serious thrombotic events.

Q: Can Rothacin affect fertility in men or women?

The official prescribing information includes sections that address its use in both females and males of reproductive potential. This section outlines documented information regarding potential effects on fertility.

Q: Does Rothacin come in different strengths?

Rothacin is manufactured in different strengths depending on the dosage form. For example, immediate-release oral capsules are available in 25 mg and 50 mg strengths, while extended-release forms may have higher strengths.

How should Rothacin be stored and disposed of?

How to Store and Dispose of Rothacin?

Storing Rothacin (Indometacin) correctly is crucial, as requirements are specific to the dosage form, as mandated by regulatory labeling.

Official Storage Conditions

Dosage Form Mandatory Storage Temperature Protection Requirement
Oral Capsule Controlled Room Temperature (20°C to 25°C) Protect from Light and Moisture
Oral Suspension Store at or below 30°C (Do Not Freeze) Protect from Excessive Heat
Rectal Suppository Refrigerate (2°C to 8°C) Maintain Form

All forms of Rothacin must be stored out of the sight and reach of children and maintained in their original, tightly closed containers. The official stability constraint for the intravenous solution requires that any unused portion must be discarded immediately after reconstitution.

Disposal

For disposal, Rothacin is generally considered a non-flushable medicine. Patients should consult a healthcare provider for instructions on discarding unused or expired product, often utilizing drug take-back programs or following guidelines for household trash disposal.

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

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