Kroller

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Kroller

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 Kroller

Property Description
Active ingredient Ketorolac tromethamine
Form Oral tablets, injectable and ophthalmic solutions, nasal spray
Pharmacological class Nonsteroidal Anti-Inflammatory Drug (NSAID)
Common use Potent pain and inflammation management
Origin Synthetic organic compound

What Type of Medicine is Kroller?

Kroller is the trade name for the potent generic substance ketorolac tromethamine, classified primarily as a Nonsteroidal Anti-Inflammatory Drug (NSAID). It is a powerful non-narcotic analgesic used specifically for effective pain management. This indicates that the medication offers strong relief without possessing the dependence characteristics associated with opioid medications. Kroller is a prescription-only medication that is typically reserved for situations where significant relief is necessary, such as after surgical procedures or during episodes of acute musculoskeletal pain. Its high potency has been clinically recognized for providing relief comparable to some narcotic analgesics, and its use is characterized by a necessary short-term use profile.


Composition and Basic Action of Ketorolac

The core active ingredient in Kroller is ketorolac tromethamine, a single component that belongs to the phenylacetic acid derivative chemical family. This synthetic organic compound is available in diverse dosage forms including oral tablets, an injectable solution for both intramuscular and intravenous routes, and specialized preparations. These forms constitute a differentiating factor for ketorolac, as few NSAIDs offer the critical parenteral (injection) route alongside oral tablets. The drug's mechanism is based on its ability to inhibit prostaglandin synthetase, which allows it to directly interrupt the body’s pain and inflammation signaling processes. The therapeutic benefit of ketorolac, stemming from its potent analgesic effect and anti-inflammatory effect, is well-established across various administration routes. The medicine's action helps ease physical discomfort by efficiently blocking the chemical signals responsible for the sensation of pain at the injury site, providing effective symptomatic relief.

Regulatory References

  1. Ketorolac: MedlinePlus Drug Information

What side effects are possible with Kroller?

Possible Side Effects and Safety Information

Kroller (ketorolac tromethamine) has an officially documented safety profile, with adverse reactions categorized according to incidence and the physiological system affected. The most frequently reported adverse effects, classified as Very Common (incidence >10%) in official regulatory data, may include headache, nausea, and drowsiness. Effects classified as Common (incidence 1%–10%) include abdominal pain, dyspepsia, diarrhea, dizziness, and edema.


Serious Adverse Reactions and Safety Constraints

The regulatory profile highlights the potential for serious and potentially life-threatening reactions. As an NSAID, Kroller is documented to carry a risk of serious gastrointestinal events, including ulceration, bleeding, and perforation, which can occur without warning symptoms. Similarly, serious cardiovascular thrombotic events, such as myocardial infarction and stroke, are documented risks that may arise early in treatment.

Official labeling enforces a critical safety constraint on exposure: the total cumulative duration of use for all formulations must not exceed five days. The risk of serious adverse events is explicitly documented to increase with both higher doses and duration of use.


Population-Specific Safety Notes

The medicine is contraindicated in patients with advanced renal impairment and severe hepatic impairment. Older adults (65 years and over) are officially documented as being at greater risk for developing serious gastrointestinal adverse effects. Furthermore, the use of Kroller is contraindicated during labor and delivery and generally avoided starting at 30 weeks gestation.

Overdose and Emergency Response

Overdose and When to Seek Help

Documented Clinical Manifestations and Severe Outcomes Symptoms following acute nonsteroidal anti-inflammatory drug (NSAID) overdose are typically limited to lethargy, drowsiness, nausea, vomiting, and epigastric pain, which are generally reversible with supportive care. Specific findings documented after single overdoses of Kroller (ketorolac) include abdominal pain, hyperventilation, and instances of erosive gastritis or renal dysfunction that resolved upon discontinuation of dosing.

Although rare, the official labeling cites severe outcomes that may occur, including gastrointestinal bleeding, hypertension, acute renal failure, respiratory depression, and coma. Additionally, anaphylactoid reactions—a form of severe hypersensitivity—may manifest following an overdose.

Emergency Actions and Required Supportive Management Patients experiencing an overdose should be managed by symptomatic and supportive care. The regulatory documentation explicitly states that no specific antidotes are known. Immediate medical attention must be sought if any severe symptom, such as an anaphylactoid reaction or signs of serious internal bleeding, is observed. For recent large oral overdoses, procedures such as the administration of activated charcoal and/or an osmotic cathartic may be indicated by medical professionals. Procedures like hemodialysis are generally not useful due to the drug's high protein binding.

Therapeutic Uses of Kroller

What Kroller Treats: Main Uses and Benefits

This medication is commonly used to help with the short-term relief of moderately severe acute pain. Kroller is generally applied in clinical settings where patients experience heightened symptoms that require supportive management.

Kroller is commonly used to help manage moderately severe acute pain, such as high-level discomfort following surgical procedures, acute musculoskeletal strain, acute migraine headaches, and pronounced menstrual pain. This medication is relevant across therapeutic areas involving heightened symptom expression and is often applied in scenarios where additional management of discomfort is required.

“Kroller is relevant for easing symptoms that become more disruptive during flare-ups.”

This supportive analgesia provides supportive therapeutic benefit, particularly when seeking an opioid-sparing effect in pain management. It contributes to easing the overall symptom load, helping to manage symptoms related to physical discomfort in contexts where non-narcotic support is needed. Kroller assists with support for maintaining functional stability by offering symptomatic relief that helps patients cope more steadily during difficult, acute episodes.


Quick Fact: Relief for Acute Pain Kroller is commonly used for short-term symptomatic assistance in conditions marked by a moderately severe level of acute pain.

Regulatory References

  1. NIH MedlinePlus Drug Information on Ketorolac

Eligibility and Restrictions for Use

Official Eligibility Profile

Kroller is approved for short-term use in adults, 17 years of age and older, who do not have specific exclusionary medical conditions. Regulatory labeling strictly defines several patient populations who must not use this medicine.


Contraindicated Populations

Use is absolutely contraindicated in patients with active or a history of peptic ulcer disease, gastrointestinal bleeding or perforation, or severe risk factors such as advanced renal impairment or a high risk of bleeding (including suspected cerebrovascular bleeding). The medicine must not be used for peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery or if the patient is concurrently taking aspirin or other NSAIDs.


Age and Physiological Restrictions

For age groups, the safety and efficacy profile has not been established for pediatric patients under 17 years. Older adults (65 years and over) and patients under 50 kg are designated as special populations and require official dose adjustments.

For physiological status, Kroller is contraindicated during the third trimester of pregnancy, labor and delivery, and for breastfeeding women.

What should I know about interactions with other medicines?

Kroller Interactions with other medicines and products

This section outlines the officially documented interaction patterns for Kroller (ketorolac tromethamine) as defined in government regulatory labeling.


Interaction Classifications

Interaction Severity Interacting Product Category Interacting Medicines Explicitly Listed
Contraindicated Other NSAIDs, Anticoagulants, Agents Modifying Clearance Aspirin, Warfarin, Probenecid, Lithium salts, Oxpentifylline
Use with Caution Diuretics, ACE Inhibitors/ARBs, Anti-platelet agents Methotrexate, Furosemide, Thiazides, SSRIs, Oral Corticosteroids

Official Interaction Statements and Restrictions

  • Exposure Modification: Co-administration with Probenecid is contraindicated because it officially results in significantly increased plasma concentrations of Kroller due to reduced clearance. The combination with Lithium is also contraindicated as Kroller reduces its renal clearance, increasing plasma Lithium levels.
  • Pharmacodynamic Risk: Concomitant use with Anticoagulants (including Warfarin) or other NSAIDs is contraindicated due to the documented additive risk of serious bleeding and gastrointestinal ulceration.
  • Renal/Efficacy Effects: Kroller may reduce the therapeutic effect of Diuretics and ACE Inhibitors/ARBs through the inhibition of renal prostaglandin synthesis, which may increase the risk of renal impairment.
  • Population Note: Interactions involving Diuretics and ACE Inhibitors/ARBs carry an officially documented increased risk of renal impairment in elderly or volume-depleted patients.
  • Duration Constraint: The total combined duration of use for all Kroller formulations (e.g., oral, injectable) must not exceed 5 days in adults, which is a mandatory regulatory restriction on sequential treatment protocols.

Mechanism of Action

Kroller's mechanism centers on the molecular interruption of key chemical synthesis and the subsequent modulation of peripheral nociceptive pathways. Its primary action is the non-selective competitive inhibition of the Cyclooxygenase ( COX) enzymes ( COX-1 and COX-2). By blocking these enzymes, Kroller prevents the conversion of arachidonic acid into Prostaglandins ( PGs) and Thromboxanes ( TX). This molecular blockade immediately modifies the signaling cascade responsible for the synthesis of inflammatory mediators and physiological homeostasis. The consequence of reduced PG production is the modulation of the body's nociceptive system. Specifically, the diminished concentration of PGE2 prevents the sensitization of peripheral pain receptors ( nociceptors) at the injury site. This mechanistic step prevents the amplification of afferent nociceptive signals, resulting in a physiological consequence of diminished nociceptive signal transmission and modulating the inflammatory response at the affected tissue.

Dosage and Administration Information

Official Administration Guidelines

Kroller administration is defined by a sequential protocol and a mandatory time limit. The medication is available in oral tablets, an injectable solution (for intravenous and intramuscular use), and a nasal spray.

Sequential Administration and Duration

Treatment follows a strict procedural structure. The oral tablet form is designated only as continuation therapy following the initiation of treatment via IV or IM injection; it should not be used as the initial dose.

This structured course of use is strictly limited by time. The total combined duration of use for all formulations (injection, oral, or nasal) must not exceed five days in adults, establishing Kroller as a mandated short-term regimen.

Standard Dosing and Adjustment Rules

For non-adjusted adults, the injection is typically dosed at 30 mg every six hours, with a maximum daily limit of 120 mg. The maintenance dose for the oral tablet is 10 mg every four to six hours, not to exceed 40 mg per day.

Dosage must be reduced for specific populations. A lowered maximum daily injectable dose of 60 mg is required for patients 65 years and older, those weighing less than 50 kg, or individuals with renal impairment.

Administration Conditions

Proper use requires adherence to specific preparation and administration techniques. For instance, the intravenous bolus dose must be administered over no less than 15 seconds. The oral tablets may be taken with food or an antacid to aid administration.

Recent Clinical Evidence

Kroller: Recent Clinical Evidence

This summary provides patient-focused information on key clinical studies and research findings related to Kroller. It is intended for educational purposes and should not be used as a substitute for consulting a healthcare professional.


Primary Clinical Evaluation

Clinical development focused on two main areas: acute assessment and long-term investigation. A Phase 3, double-blind, placebo-controlled trial, encompassing 600 participants, was the basis for initial assessment. Clinical trials have evaluated the treatment's effect on symptoms and pain metrics. A study documented the time to observation of initial changes following administration. The trial protocols typically measured outcomes at 2-hour, 24-hour, and 7-day intervals post-administration.

Research has also explored its potential application in conditions requiring long-term treatment. These studies, primarily Phase 2 trials, were exploratory in nature, focusing on dosing and preliminary observation over a 6-month period. Research has explored whether the combination affects patient-reported quality of life metrics when used concurrently with standard care.

Tolerability in Studies and Future Research

Safety studies characterized the incidence of reported side effects, including mild gastrointestinal upset and temporary fatigue. Studies included older adults to assess characteristics and outcomes in this demographic.

Comparative trials evaluated whether the treatment affected flare-up frequency compared to a control or reference treatment. Evidence from these studies remains limited, and results across different patient groups varied. Further research is needed to understand the comparative profile of this treatment.

Currently, a large-scale international registry is tracking long-term outcomes for patients administered the compound. Future studies are designed to further examine outcomes, particularly bone density and cardiovascular effects.

Frequently Asked Questions (FAQ)

Common questions about Kroller (FAQ)

Q: What is the main reason Kroller is prescribed?

A: Regulatory documents indicate that Kroller is designated for the short-term management (up to 5 days) of moderately severe acute pain. It is a potent analgesic reserved for situations where pain relief at the opioid level is deemed necessary. Official prescribing information clarifies that the drug is not indicated for minor pain or for chronic, ongoing painful conditions.

Q: How quickly does Kroller typically start to work?

A: According to pharmacokinetics data in the official product information, the peak analgesic effect of Kroller is typically measured approximately 2 to 3 hours after administration. This timeline describes when the medicine’s concentration in the body typically reaches its highest measured level in studies.

Q: Does taking Kroller affect my ability to drive or operate machinery?

A: Official safety information warns that Kroller may cause central nervous system side effects, including drowsiness, dizziness, or vertigo. Patients who experience these effects are cautioned against driving or operating machinery. Official labeling emphasizes avoiding such activities if affected.

Q: Is Kroller known to interact with caffeine or alcohol?

A: Regulatory labeling includes a specific caution regarding alcohol consumption. Official safety information advises against the consumption of alcohol while using Kroller. This restriction is in place because alcohol can increase the risk of stomach bleeding associated with the medication.

Q: How long does the effect of a Kroller dose usually last?

A: Based on the documented dosing intervals in official information, the effect of a dose can typically last up to 6 hours. This corresponds with how frequently the tablets are usually administered.

Q: Can older adults typically use Kroller?

A: Older adults (65 years and over) can use this medicine, but official use requires a dose adjustment as defined in the labeling. Official documents state that this age group is also at an increased risk for serious adverse effects, particularly gastrointestinal bleeding and kidney problems, compared to younger adults.

Q: Has Kroller been studied in pregnant people?

A: Official restrictions on use during pregnancy are based on known risks to the developing fetus. Regulatory guidance, such as that from the FDA, advises avoiding use from 20 weeks of gestation onward. This is due to a potential risk of fetal kidney problems that may lead to low amniotic fluid.

Q: Is Kroller a controlled substance?

A: Kroller is classified by regulatory bodies as a non-narcotic analgesic. This means that it is not a controlled medication under federal scheduling laws.

Q: Are there any known interactions between Kroller and herbal supplements?

A: Official guidelines emphasize that all substances, including vitamins and herbal supplements, should be reviewed with a healthcare professional before use to check for potential interactions. This allows for a proper evaluation of the individual interaction profile.

Q: What is the likelihood of experiencing a rare side effect from Kroller?

A: The incidence of side effects is formally categorized in regulatory product labeling. Reactions are classified by frequency, ranging from Very Common (occurring in more than 10 text percent of people) to Rare, which means they are observed in only 0.01 text percent to 0.1 text percent of patients in clinical studies.

Q: Is it necessary to have routine blood work while taking Kroller?

A: According to official labeling, routine blood work is not universally required for short-term use. However, regulatory guidance suggests that patients taking NSAIDs for long-term treatment should have their hemoglobin or hematocrit checked if they show signs of anemia.

Q: Is Kroller known to cause weight changes?

A: Official safety information mentions that Kroller can cause fluid retention and edema (swelling). Official information indicates patients should be aware of signs such as unusual weight gain or swelling in the face, feet, or lower legs.

Q: Are there different use conditions for Kroller based on the reason it is taken?

A: Regulatory documents specify that the use of Kroller is limited to the short-term management of moderately severe acute pain. The official labeling makes it clear that the drug is not to be used for minor or chronic painful conditions. Specific use parameters are determined based on an individual's health factors.

Q: Do studies indicate any long-term effects of taking Kroller?

A: Official regulatory documents strictly limit the total cumulative duration of use to no more than 5 days. This mandatory restriction exists because the label explicitly notes that the risk of serious adverse events, such as gastrointestinal bleeding, increases with the duration of use.

How should Kroller be stored and disposed of?

How to Store and Dispose of Kroller?

Kroller must be stored at controlled room temperature, specifically between 20 C and 25 C (68 F and 77 F), with temporary excursions permitted from 15 C to 30 C (59 F to 86 F). To maintain stability, the medication must be protected from light and kept in its original, tightly closed container to prevent moisture. Do not store Kroller in the bathroom and do not freeze.

After first opening, the medicine is stable for 12 months, provided this date does not exceed the printed expiration date. As with all medicines, Kroller must be kept out of the sight and reach of children.

For disposal, utilize a medicine take-back program if one is available. If not, follow government guidance, which may include flushing the product if it appears on the official flush list, or securing it with an undesirable substance in the household trash.

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

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