Ketolgan

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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 Ketolgan

Property Description
Active Ingredient Ketorolac tromethamine (INN)
Form Sterile solution for injection (Parenteral)
Pharmacological Class Nonsteroidal Anti-Inflammatory Drug (NSAID)
Type Potent Non-Opioid Analgesic
Origin Synthetic (Pyrrolo-pyrrole derivative)

What Type of Medicine is Ketolgan and What is its Composition?

Ketolgan is a synthetic, prescription-only pharmaceutical preparation classified as a potent Nonsteroidal Anti-Inflammatory Drug (NSAID). The active component is Ketorolac tromethamine, a substance chemically recognized as a pyrrolo-pyrrole carboxylic acid derivative. This specific formulation is typically manufactured as a sterile solution for injection, designed for rapid action via the parenteral route of administration.

This medication is clinically recognized for its high analgesic capacity, as its efficacy has been found to be comparable to certain opioid analgesics. This positions Ketolgan as a strong non-opioid agent for pain management, suitable for use in settings where intense acute pain control is needed without reliance on narcotic substances. This structural and functional differentiation is key to its therapeutic role.

How is Ketolgan Classified as a Potent Analgesic?

Ketolgan is classified as a potent peripheral analgesic because its primary therapeutic function is to block the processes responsible for pain and inflammation directly in the tissues. The mechanism involves strongly inhibiting the cyclooxygenase (COX) enzyme, which prevents the synthesis of prostaglandins—the body’s chemical messengers that trigger pain, localized swelling, and fever.

This powerful biochemical action allows the medication to deliver effective analgesia (pain relief) and complementary anti-inflammatory effects. Due to this efficacy, the use of Ketorolac is widely supported in clinical practice as an opioid-sparing agent in acute care, often in scenarios such as managing severe discomfort immediately following surgical procedures. This strategy ensures intense acute pain is controlled while actively minimizing dependency concerns associated with traditional narcotics.

What side effects are possible with Ketolgan?

Ketolgan: Possible Side Effects and Safety Information

Ketolgan (ketorolac tromethamine) is a potent nonsteroidal anti-inflammatory drug (NSAID) indicated for the short-term management of moderately severe acute pain. Like all NSAIDs, it carries risks that require careful monitoring, and treatment duration should not exceed five days in adults.

Serious Warnings and Risks

Administration of Ketolgan is associated with an increased risk of serious, and potentially fatal, gastrointestinal (GI) events, including bleeding, ulceration, and perforation of the stomach or intestines. This risk increases with the duration of use and is higher in elderly patients or those with a history of GI disease. Symptoms may include black or bloody stools or vomiting that resembles coffee grounds.

Ketolgan can also increase the risk of serious cardiovascular (CV) thrombotic events, such as heart attack and stroke. This risk may be higher for individuals with existing heart disease or those using the medication long-term. Ketolgan is contraindicated for pain relief immediately before or after coronary artery bypass graft (CABG) surgery. Additionally, it can cause renal toxicity and is contraindicated in patients with advanced renal impairment.

Common Side Effects

The most commonly reported side effects, typically affecting the gastrointestinal system, include:

System Common Side Effects (approx. 1–10%)
Gastrointestinal Nausea, dyspepsia (indigestion), abdominal pain, constipation, diarrhea, flatulence.
Central Nervous System Headache, dizziness, drowsiness.
Other Edema (swelling), increased bleeding time, injection site pain (for injectable forms), sweating.

Patients should immediately seek medical attention if they experience signs of a severe allergic reaction (rash, difficulty breathing, swelling of the face/throat), severe stomach pain, unexplained weight gain, or decreased urination, as these can indicate serious complications.

Overdose and Emergency Response

Overdose and When to Seek Help

The overdose profile for Ketolgan (Ketorolac tromethamine) is based exclusively on toxicology data and emergency guidance detailed in government regulatory documents.

Overdose Scope & Risk Official Regulatory Description
Documented Manifestations Acute NSAID overdose symptoms are often self-limiting, including lethargy, drowsiness, nausea, vomiting, and epigastric pain.
Severe Systemic Outcomes Rare but potentially life-threatening complications may occur, such as acute renal failure, severe gastrointestinal hemorrhage, respiratory depression, and coma.
Population Notes Elderly patients and those with impaired renal function face increased risk for serious or potentially fatal adverse events.
Immediate Help Required Seek immediate medical attention or Contact a Poison Control Center. All patients with suspected overexposure must be managed with supportive care.
Management & Antidote Official Regulatory Guidance
Antidote Status No specific antidote is known for Ketorolac overdose. Treatment is strictly symptomatic and supportive.
Procedural Measures Administration of activated charcoal may be indicated following a documented large ingestion.

Connection to the Overall Overdose Profile: The official documentation defines the overdose profile by listing both minor symptoms and the explicit risk of severe systemic events involving the kidneys and the GI tract. Since there is no specific antidote, regulatory guidance mandates that patients seek immediate medical attention for necessary supportive care and monitoring.

Therapeutic Uses of Ketolgan

The primary therapeutic role of Ketolgan is applied in addressing symptoms related to physical discomfort associated with acute or disruptive episodes. The medication is commonly used in contexts where patients experience significant discomfort, such as following procedures or injuries. The medication is relevant for easing symptoms that interfere with daily functioning during phases when symptoms become more noticeable.

Ketolgan is used for managing symptoms related to physical discomfort associated with acute or disruptive episodes. This includes discomfort following surgical procedures, pain stemming from injuries, and symptoms that become more disruptive during flare-ups, such as certain headaches. Ketolgan supports symptomatic relief across therapeutic domains where additional management of discomfort is needed, particularly for symptoms that create noticeable physiological strain.

Quick Fact: Relief for Acute Discomfort

This injectable formulation may assist with maintaining functional stability and contributes to improved comfort by addressing the symptoms related to inflammatory or irritative states associated with tissue trauma. Furthermore, it plays a role in managing symptoms where reducing the use of narcotic substances is a relevant clinical goal, supporting patients during difficult episodes by easing distress.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Official Eligibility and Contraindications

Ketolgan (Ketorolac Tromethamine) is subject to strict eligibility rules based on official regulatory documentation. The medicine is primarily indicated for short-term use in adults for acute pain management. Its use is contraindicated across several patient populations and clinical conditions due to the potential for serious risk, as defined in regulatory labeling.

Contraindicated Populations and Conditions:

  • Hypersensitivity: Patients with a known allergy to ketorolac, aspirin, or any other Nonsteroidal Anti-inflammatory Drugs (NSAIDs).
  • Gastrointestinal Status: Those with active or a history of peptic ulcer disease, recent GI bleeding, or perforation.
  • Renal/Volume Status: Individuals with advanced renal impairment or those at high risk of renal failure due to volume depletion.
  • Bleeding Risk: Patients with suspected or confirmed cerebrovascular bleeding, hemorrhagic diathesis, or other high-risk bleeding conditions.
  • Surgical Context: Use is prohibited in the peri-operative setting of Coronary Artery Bypass Graft (CABG) surgery.
  • Pregnancy/Lactation: It is contraindicated during the third trimester of pregnancy, labor and delivery, and for use by nursing mothers.
  • Age: The medicine is not established or contraindicated for use in pediatric patients (under 16 or 18 years of age, depending on formulation/region).

Special Considerations: Use in older adults (over 65) requires caution and careful dose adjustment due to increased vulnerability to severe GI and renal adverse events, though it is not an absolute contraindication.

What should I know about interactions with other medicines?

Ketolgan Interactions with Other Medicines and Products

This section outlines interactions for Ketolgan (ketorolac tromethamine) as documented in official government regulatory sources.


Formally Documented Contraindicated Combinations

Co-administration of Ketolgan is officially prohibited with several drug classes due to significant interaction risks:

  • Other Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) and Aspirin (Acetylsalicylic Acid): Prohibited due to the cumulative risk of serious gastrointestinal side effects.
  • Probenecid and Lithium Salts: Prohibited because Ketolgan significantly alters the clearance of these medicines, leading to potentially increased plasma levels.
  • Anticoagulants (e.g., warfarin) and Oxpentifylline (Pentoxifylline): Forbidden due to a pronounced and augmented risk of serious bleeding events.

Documented Pharmacodynamic and Exposure-Altering Interactions

Regulatory information notes interactions that require caution, monitoring, or may alter the expected effect of co-administered drugs:

Interacting Substance Officially Documented Interaction Pattern
Diuretics (e.g., Furosemide) Ketolgan may reduce the natriuretic (salt-excreting) effect of these medicines.
ACE Inhibitors / ARBs May increase the risk of renal impairment and decrease the antihypertensive effect.
Methotrexate Co-administration may increase the toxicity of methotrexate by reducing its renal clearance.
SSRIs & Oral Corticosteroids Caution advised as these may increase the overall risk of bleeding or ulceration.

Population-Specific Interaction Cautions

Elderly patients are noted in prescribing information as having a greater risk for serious gastrointestinal events when Ketolgan is combined with other risk factors. Patients who are volume-depleted or have hepatic impairment are also at increased risk for renal interactions, particularly with agents like ACE inhibitors.

Mechanism of Action

How Ketolgan Works

Ketolgan’s core mechanism involves its binding as a selective modulator to the R X receptor system. This interaction alters signaling dynamics within defined central pathways.

Following receptor engagement, the compound initiates a molecular cascade that affects key downstream signal transduction pathways. This process modifies the activity of pathways associated with dysregulated physiological responses by altering early molecular steps that shape systemic physiological outcomes.

By influencing the core R X pathway and subsequent cascades, Ketolgan modulates activity within defined neurohumoral systems. This systemic adjustment affects pathway activity in biological systems where particular mediators or transmitters dominate, contributing to the physiological modulation observed.

Dosage and Administration Information

Official Administration Guidelines for Ketolgan Injection

Ketolgan (ketorolac tromethamine) is administered following established protocols for short-term management. The prescribed use is defined by specific routes, doses, and duration limits, ensuring the lowest effective dose is used for the shortest possible duration.

Administration Routes and Forms

Therapy must be initiated with the sterile solution for injection via the intravenous (IV) or intramuscular (IM) route. The 10 mg oral tablet is indicated only as continuation treatment following initial IV or IM dosing, and the tablet form should not be used as a starting dose. The injection is explicitly contraindicated for epidural or spinal administration.

Labeled Dosing and Frequency

Patient Population Multiple-Dose Regimen (IV/IM) Maximum Total Daily Dose
Standard Adults (<65 years, ge 50 kg) 30 mg every 6 hours 120 mg
Special Populations (ge 65 years, <50 kg, or impaired renal function) 15 mg every 6 hours 60 mg

For single-dose treatment, the dose is 60 mg IM or 30 mg IV (30 mg IM or 15 mg IV for special populations). The oral continuation dose is typically 10 mg every 4 to 6 hours, with a maximum daily oral dose of 40 mg.

Procedural and Time Constraints

The total combined duration of use—including both injectable and oral forms—must not exceed 5 days in adult patients. When administered intravenously, the bolus dose must be given over no less than 15 seconds. For intramuscular administration, the injection should be given slowly and deeply into the muscle. Breakthrough pain should be managed by supplementing with other analgesics rather than increasing the dose or frequency of this medicine.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Efficacy and Symptom Management

Research explored the relationship between the compound in Ketolgan and the symptoms of condition X in trial participants. The primary focus of the clinical program was to assess changes in specific symptom severity scores over defined periods.

  • Primary Randomized Controlled Trial (RCT): The largest study, a randomized controlled trial, evaluated the findings of the combination in participants experiencing moderate symptom severity. Participants were monitored for a set duration, and the main measure was a change recorded on a validated severity scale. Some studies specifically assessed the changes in symptom scores over time.

  • Pain Score Evaluation: An evaluation of changes in pain scores within the first week was documented in certain trials. Separate research also examined the compound’s relationship with physiological metrics, such as nerve function measurements.


Pharmacokinetics and Administration

Studies investigated how the compound is absorbed, processed, and cleared from the body.

  • Absorption Profile: Research determined the compound’s absorption profile. These bioavailability studies informed the administration details that were ultimately used in the larger, later-stage clinical trials.

  • Processing and Elimination: Research investigated how the compound is processed (e.g., in the liver) and eliminated primarily by the body, including the time required for clearance.


Safety and Tolerability

The research included a comprehensive review of adverse events documented across all completed trials involving Ketolgan.

  • Adverse Event Rates: The frequency and severity of reported events were documented. The events most frequently documented across the studies were generally mild and included [Specific Side Effect A] and [Specific Side Effect B].

  • Long-Term Monitoring: Studies of longer duration have been conducted to document the incidence of less common events over an extended period. Some research included data comparing reported safety profiles among different treatments.

Frequently Asked Questions (FAQ)

Common questions about Ketolgan (FAQ)


Q: What specific conditions or patient groups is Ketolgan approved to treat?

A: Official regulatory documents indicate that Ketolgan is approved for the short-term management of moderately severe acute pain, typically following surgical or other painful procedures. The total duration of use, including all forms, must not exceed five days. The medication is recognized as providing a level of pain relief comparable to certain opioid treatments.


Q: Why is Ketolgan available only with a prescription and not over the counter?

A: According to official regulatory documents, Ketolgan is a prescription-only medication because it is associated with an increased risk of serious, and potentially fatal, side effects. These include gastrointestinal bleeding, ulceration, and cardiovascular thrombotic events. This potential for serious risk necessitates professional oversight and strict duration limits.


Q: What are the official restrictions for using Ketolgan if a person has heart disease or has recently had a heart attack?

A: Regulatory information indicates that Ketolgan is contraindicated for the treatment of pain immediately before or after Coronary Artery Bypass Graft (CABG) surgery. Caution is also advised for patients with pre-existing heart conditions, including high blood pressure (hypertension) or cardiac decompensation (heart failure). These conditions are listed in the official warnings, which emphasizes the need for close medical consultation.


Q: Is it possible to develop physical dependence on Ketolgan?

A: Official product information states that Ketolgan is a non-narcotic analgesic. It is not considered to be habit-forming. For this reason, it will not cause the type of physical or mental dependence associated with narcotic substances.


Q: Does Ketolgan have any known effects on mental clarity, concentration, or mood?

A: Regulatory information reports nervous system effects in some patients, including dizziness and drowsiness. Adverse reactions listed also include difficulty concentrating, confusion, anxiety, depression, or hallucinations. These effects may impact a person’s mental clarity and overall mood.


Q: Are there any official reports of Ketolgan causing headaches or worsening existing ones?

A: Yes, headache is reported in the labeling as a common adverse reaction, meaning it occurs in more than 10% of patients in some studies. This information is included to inform patients of frequently observed effects during the treatment period.


Q: How quickly can a person typically expect to feel the pain-relieving effects of Ketolgan?

A: Studies indicate that the peak pain-relieving effect of Ketolgan typically occurs within 2 to 3 hours after administration. This pharmacokinetic information helps determine when the compound is most concentrated in the body.


Q: Is Ketolgan more effective when taken at a specific time of day or with food?

A: The official guidance describes that the oral form of Ketolgan may be administered with food or an antacid, a measure that can help lessen gastrointestinal irritation. Studies show that taking the oral tablet with a high-fat meal can delay the time required to reach the peak concentration of the drug in the body.


Q: Is Ketolgan known to cause difficulties with sleeping or insomnia?

A: Regulatory documents list insomnia (difficulty sleeping) as a reported adverse experience, although it is less common than other central nervous system effects. Additionally, common side effects can include drowsiness.


Q: Is there a generic version of Ketolgan currently available?

A: Yes, the active ingredient in Ketolgan, which is ketorolac tromethamine, is available as a generic medication. Generic versions are subject to the same strict regulatory standards as the original brand-name product.


Q: Are there any other names or brand versions of Ketolgan used internationally?

A: The active ingredient in Ketolgan, ketorolac, is marketed under various brand names in different regions of the world. Examples of official brand names that contain this compound include Toradol, Toradol IV/IM, and Sprix.


Q: Is Ketolgan suitable for patients with pre-existing kidney or liver function impairment?

A: Ketolgan is contraindicated in patients with advanced renal impairment (severe kidney problems). Liver function must also be considered, as liver failure is listed as a serious adverse reaction. The presence of severe liver disease is a factor that is noted in regulatory information and warrants detailed medical consultation.


Q: Can patients who have high blood pressure take Ketolgan safely?

A: Official documents state that nonsteroidal anti-inflammatory drugs (NSAIDs) like Ketolgan may worsen pre-existing high blood pressure or lead to new onset of hypertension. Due to this risk, the label includes warnings that caution should be exercised in these patients and that blood pressure monitoring may be necessary during treatment.


Q: Is having asthma or other respiratory issues affect a person's eligibility to use Ketolgan?

A: Ketolgan is contraindicated for patients who have experienced asthma or allergic reactions after taking aspirin or other NSAIDs. Official warnings highlight that the drug should be used with caution in patients with pre-existing asthma, due to the risk of respiratory side effects such as bronchospasm.


Q: Can patients with diabetes use Ketolgan without major complications?

A: Official warnings note that diabetes mellitus is a condition that warrants detailed consultation before the use of Ketolgan. Furthermore, a documented interaction exists with the diabetes medication metformin that may increase the risk of a rare, serious condition called lactic acidosis.


Q: Are there specific autoimmune conditions that contraindicate the use of Ketolgan?

A: Regulatory information notes that for patients with Systemic Lupus Erythematosus (SLE), the chance of experiencing serious side effects may be increased. The presence of this and any other autoimmune condition is a factor that should be included in the medical history review before starting treatment.


Q: Is there any known effect of Ketolgan on fertility or reproductive health?

A: Official product information includes a statement that the medication is not recommended for women who are attempting to conceive, as studies indicate it may cause a reversible impairment of female fertility. Infertility is also listed as a postmarketing adverse event reported in official safety documents.


Q: What is the guidance on consuming alcohol while undergoing treatment with Ketolgan?

A: Official product information states that consumption of alcohol is generally not recommended during treatment. Alcohol may significantly increase the risk of stomach bleeding and gastrointestinal irritation, which are already serious potential risks of the medication.


Q: Does Ketolgan interact with any specific herbal supplements, vitamins, or dietary aids?

A: Regulatory guidance emphasizes the importance of reviewing a complete list of all products, including herbal products and vitamins, as some supplements may have interacting effects. This ensures that any potential risks can be assessed before use.


Q: Are there any particular foods or beverages that should be avoided when taking Ketolgan?

A: Official documents include a regulatory warning that alcohol (beverages) and tobacco (smoking) are advised to be avoided while using Ketolgan. Both substances may increase the risk of serious gastrointestinal side effects, including bleeding, which is a major safety concern for this medication.


Q: Can cold and flu medications containing decongestants be used alongside Ketolgan?

A: Decongestants, like Ketolgan, may affect blood pressure and heart rate in some people. Because of these potential effects, regulatory information advises that the combination of these substances warrants medical review, particularly for patients with a history of heart disease or high blood pressure.


Q: Does Ketolgan affect the activity of antacids or proton pump inhibitors?

A: Studies on the oral form of the medication show that antacids do not affect the extent of its absorption. No specific regulatory interaction is noted for proton pump inhibitors (PPIs) beyond their use to help manage the gastrointestinal risk associated with the drug.


Q: What are the official warnings about mixing Ketolgan with recreational substances?

A: Regulatory information indicates that the use of substances such as alcohol or marijuana (cannabis) may increase common side effects like dizziness or drowsiness. Regulatory guidance advises that the use of any recreational substance should be reviewed by a healthcare provider.


Q: Are there known interactions with statin medications for cholesterol?

A: The use of statin medications and other agents that affect the liver is a factor that warrants medical review, as Ketolgan carries a warning regarding the potential for liver failure as a serious adverse reaction. Caution is exercised when combining any agents with similar risk profiles.


Q: What signs or symptoms indicate a dangerous drug-to-drug interaction involving Ketolgan?

A: Signs of a serious complication or interaction include black, bloody, or tarry stools, or vomiting blood or material that looks like coffee grounds, which may indicate internal bleeding. Other severe signs include those of a serious allergic reaction (rash, difficulty breathing) or a sudden, unusual decrease in urination.


Q: What is the official guidance for a person who accidentally misses a scheduled dose of Ketolgan?

A: Official guidance advises that a person should not take two doses at the same time to compensate for a missed dose. Dosing must remain strictly within the prescribed time intervals and daily limits.


Q: Can treatment with Ketolgan be stopped abruptly, or should the dose be gradually reduced?

A: Treatment is intended for a strict maximum of 5 days and can be stopped when pain relief is no longer required or the limit is reached. Since the drug is not considered habit-forming, regulatory warnings do not require a gradual reduction (tapering) of the dose.


Q: Does Ketolgan affect the results of any common laboratory tests?

A: Studies indicate that Ketolgan is known to cause increased bleeding time by interfering with the function of platelets (blood-clotting cells). This interference may affect the results of certain coagulation or blood tests performed in a laboratory.

How should Ketolgan be stored and disposed of?

The storage and disposal of Ketolgan (Ketorolac tromethamine injection) must strictly follow official regulatory requirements to ensure product stability and safety.

Official Storage Requirements

Condition Requirement
Temperature Store at Controlled Room Temperature (20 C to 25 C / 68 F to 77 F). Do not refrigerate or freeze.
Protection Keep the solution protected from light and in its original carton until use.
Safety Keep the medication out of the sight and reach of children.

Stability and Disposal

Ketolgan injection is designated for single use only. The product must be used immediately after opening, and any unused solution must be discarded. Disposal of all unused product or waste material must be conducted in accordance with local pharmaceutical waste requirements.

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

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