Vatorlac

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Vatorlac

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Medically reviewed

Laura Arias

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 Vatorlac

Property Description
Active Ingredient Ketorolac tromethamine (INN)
Pharmacological Class Nonsteroidal Anti-Inflammatory Drug (NSAID)
Primary Form Solution for Injection / Oral Tablets
Origin Synthetic organic compound
General Purpose Management of moderately severe acute pain

What Type of Medicine is Vatorlac (Ketorolac)?

Vatorlac is a potent, prescription pharmaceutical preparation classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID). Its active ingredient is ketorolac tromethamine, identified as an International Nonproprietary Name (INN). The medicine is a synthetic organic compound from the pyrrolo-pyrrole group. The medication is characterized by high analgesic efficacy, establishing it as a standard for treating pain requiring significant intervention and providing effective, high-level discomfort relief.

Vatorlac is fundamentally an analgesic agent, specifically designed for short-term management of moderately severe acute pain, such as severe dental pain or acute post-operative discomfort. Its high efficacy distinguishes it within the NSAID category, positioning it to offer potency comparable to some opioid medications while being non-narcotic and non-habit-forming.


Forms, Composition, and General Purpose

Vatorlac is a single-ingredient product supplied in several physical forms for different routes of administration. The most common presentations include a solution for injection—delivered via the parenteral routes (intramuscular or intravenous) for rapid effect—and oral tablets for less acute use. The active substance, ketorolac tromethamine, works by inhibiting specific biological processes.

Due to its potent mechanism as a non-selective cyclooxygenase (COX) inhibitor, Vatorlac is explicitly intended for short-term management of acute pain where its specialized strength is required. The focus on both parenteral and oral delivery forms highlights its positioning for transitions in pain management. Its general therapeutic purpose is to interrupt the chemical signals of pain and inflammation, providing robust relief where other NSAIDs may be insufficient.

What side effects are possible with Vatorlac?

Possible Side Effects and Safety Information

Vatorlac (ketorolac tromethamine) is a potent Nonsteroidal Anti-Inflammatory Drug (NSAID) with a safety profile that necessitates strict adherence to prescribed use and duration limits. The following information on potential adverse reactions and safety constraints is based strictly on government regulatory documents, such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA).


Serious Adverse Event Warnings

Regulatory agencies require that Vatorlac carry boxed warnings concerning two major risks:

  • Serious Gastrointestinal (GI) Risk: The medication can cause GI bleeding, ulceration, or perforation of the stomach or intestines, events that may be fatal. These complications can occur at any time and may happen without warning symptoms.
  • Serious Cardiovascular (CV) Thrombotic Risk: Vatorlac may increase the risk of serious CV thrombotic events, including myocardial infarction (heart attack) and stroke, which may also be fatal.

Officially Documented Adverse Reactions

Adverse reactions are formally classified by incidence and affected body system (System-Organ Class):

System-Organ Class Common Adverse Reactions (Examples) Serious or Less Common Reactions (Examples)
Gastrointestinal Nausea, Dyspepsia, Abdominal pain, Diarrhea GI Bleeding/Perforation, Gastritis, Vomiting
Nervous System Headache (most common), Dizziness, Drowsiness Aseptic Meningitis, Convulsions, Insomnia
Renal/Urinary Edema, Hypertension Acute Renal Failure, Nephrotic Syndrome

Safety Constraints and Population Risks

  • Duration Limit: The total combined treatment duration of Vatorlac (all routes of administration) must not exceed 5 days, as the risk of serious side effects increases significantly with prolonged use.
  • Population Contraindications: Vatorlac is contraindicated in patients with moderate to severe renal impairment and in women during the third trimester of pregnancy, labor/delivery, and breastfeeding. Older adults are at a greater risk for serious GI and renal events.
  • Surgical Contraindication: It is contraindicated for the treatment of peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Overdose and Emergency Response

Overdose and when to seek help

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. Single large overdoses of Vatorlac (ketorolac tromethamine) have also been specifically associated with abdominal pain, hyperventilation, peptic ulcers, and renal dysfunction.

Documented Severe Outcomes Required Emergency Actions
Gastrointestinal bleeding, hypertension, and acute renal failure may occur. Respiratory depression and coma are documented as rare, severe outcomes. Anaphylactoid reactions may also occur. Immediate medical attention must be sought for any suspected overdose. Patients must be managed by symptomatic and supportive care.

No specific antidote is known for Vatorlac overdose. Specific supportive measures, such as emesis and/or activated charcoal and an osmotic cathartic, may be indicated if the patient is seen within four hours of ingesting a large oral overdose (defined as 5 to 10 times the usual dose). Elderly patients are at greater risk for serious gastrointestinal events, which increases the potential severity of overdose complications. Procedures like hemodialysis are noted as not useful due to the high protein binding of the drug.

Therapeutic Uses of Vatorlac

Vatorlac is applied in clinical settings that involve acute or unstable symptom patterns, addressing symptoms related to physical discomfort that are symptoms associated with acute or episodic changes. The medication is indicated for use in contexts marked by increased discomfort or tension, such as following surgery, or during acute episodes like renal colic, severe musculoskeletal injury, and post-operative discomfort. This medication provides supportive relief that may assist patients in coping with difficult, episodes of increased discomfort or tension.

It is commonly used across conditions where additional symptomatic support is needed to provide short-term symptomatic assistance. It helps address groups of symptoms that may appear suddenly, including pain and localized swelling. Vatorlac is also used within therapeutic areas involving a heightened need for support for heightened physiological activity and is relevant when limiting opioid use is a primary goal. This use contributes to maintaining a sense of stability when symptoms become more noticeable, and may be part of symptomatic management in situations where additional symptomatic assistance is needed. Vatorlac provides supportive relief that contributes to easing the overall symptom load and may help improve day-to-day comfort during symptomatic periods.

Quick Fact: Relief for Moderately Severe Acute Pain

Regulatory References

  1. NIH StatPearls overview

Eligibility and Restrictions for Use

Vatorlac (ketorolac tromethamine) is a potent medicine whose use is strictly governed by population eligibility rules documented in official regulatory sources. It is officially intended only for adults who are free of specific high-risk conditions and who require short-term management of moderately severe acute pain.

The medicine is absolutely contraindicated in patients with a history of gastrointestinal bleeding, peptic ulcer disease, advanced renal impairment, or confirmed cerebrovascular bleeding. Individuals with severe heart failure, severe hepatic failure, or a known hypersensitivity to aspirin or other NSAIDs must also not use this medicine. Additionally, its use is contraindicated for pain management during Coronary Artery Bypass Graft (CABG) surgery, in the third trimester of pregnancy, and during labor and delivery.

Regulatory documents also define specific population limitations. Geriatric patients (65 years and older) and individuals weighing less than 50 kg must receive a reduced maximum daily dose. Children under 2 years of age are generally not recommended due to a lack of established safety and efficacy data.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Vatorlac (ketorolac) has officially documented interaction patterns that primarily affect bleeding risk, renal function, and plasma drug concentration. All interaction data presented are consistent with official government prescribing information.

Formal Prohibitions and Restrictions

The following combinations are formally classified as contraindicated in regulatory documents:

  • Other Nonsteroidal Anti-Inflammatory Drugs (NSAIDs): Co-administration with aspirin or any other NSAID is prohibited due to the cumulative risk of serious NSAID-related side effects.
  • Probenecid: Co-administration is contraindicated because it significantly decreases Vatorlac's clearance, resulting in substantially increased plasma concentrations.
  • Pentoxifylline and Anticoagulants (including Warfarin and Heparin): These combinations are contraindicated due to the increased risk of severe bleeding and hemorrhage.

Exposure-Modifying Interactions

Certain medicines exhibit exposure modification when co-administered with Vatorlac:

  • Lithium: Vatorlac can cause an elevation of plasma lithium levels by reducing renal lithium clearance.
  • Methotrexate: The drug may inhibit methotrexate accumulation, officially documented as potentially enhancing its toxicity.

Pharmacodynamic Risk Reinforcement

Interactions that increase risk through additive effects include co-administration with ACE inhibitors or ARBs, which increases the risk of renal impairment, and with SSRIs or Corticosteroids, which heightens the risk of bleeding.

Administration and Food Notes

The total duration of Vatorlac therapy, regardless of the route of administration, must not exceed five days. The oral administration of Vatorlac following a high-fat meal results in documented decreased peak concentration (C max) and a delayed time-to-peak concentration (T max); however, antacids do not affect the extent of its absorption. Clearance may be slower in geriatric patients, a population-specific note that may increase sensitivity to interactions.

Mechanism of Action

How Vatorlac Works

Vatorlac functions by acting as a selective antagonist against the Interleukin-17 receptor (IL-17R), preventing receptor activation by endogenous IL-17 ligands.

The deactivation of the IL-17R results in the inhibition of downstream signaling cascades within T H17 lymphocytes and osteoclast precursor cells, specifically targeting the NF-kappa B and MAPK pathways. This inhibition reduces the concentration of various inflammatory cytokines, including IL-6 and TNF-alpha.

The resulting inhibition of NF-kappa B signaling within the bone microenvironment regulates the activity of osteoblasts and osteoclasts. The primary consequence is a decrease in osteoclast-mediated bone resorption, which modulates the balance of bone resorption and formation. This NF-kappa B pathway modulation is linked to a measurable reduction in osteoclastogenesis and decreased bone turnover markers.

Dosage and Administration Information

How Vatorlac is Used: Administration Guidelines

Vatorlac (ketorolac tromethamine) is used according to specific protocols that define the precise route, dosage, and maximum duration of therapy. This medication is indicated strictly for the short-term management of acute pain, and the total combined course of treatment (including all forms) must not exceed 5 days.

Administration Sequence and Routes

Administration begins using the parenteral forms: the intravenous (IV) or intramuscular (IM) injection solution. The oral tablets are indicated only as a continuation therapy following initial treatment with the injectable form; they must not be used to start therapy. The IV bolus must be administered slowly, taking no less than 15 seconds, while IM administration requires a slow and deep injection into the muscle.

Dosage and Frequency

For standard adult patients (under 65 years and ge 50 kg), the multiple-dose parenteral regimen is typically 30 mg administered IV or IM every 6 hours, with a maximum total daily dose of 120 mg. When transitioning to the oral form, the maintenance dose is 10 mg given every 4 to 6 hours, limited to a maximum of 40 mg per day.

Population-Specific Dosing

Reduced dosing is an established protocol for specific patient groups, including individuals 65 years of age or older, those weighing less than 50 kg, or patients with moderately elevated serum creatinine. For these populations, the maximum total daily dose for parenteral administration is reduced to 60 mg. Furthermore, a condition for proper use is that any existing hypovolemia must be corrected prior to administration.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Vatorlac


Evidence for Use in Moderately Severe Post-Operative Pain

Research exploring Vatorlac has been evaluated in short-term studies involving adults experiencing acute pain in contexts such as post-operative recovery. The main body of evidence comes from short-term Randomized Controlled Trials (RCTs) and high-level evidence summaries, which examine symptom intensity or variability.

The primary outcomes research examined included recorded changes in patient-reported symptom intensity (such as VAS or NRS) and the amount of opioid medication monitored in the post-operative period. Studies reported measurements of recorded changes in pain scores that occurred following the initial dose. Many trials described patterns where opioid consumption was monitored when Vatorlac was administered as part of the pain management regimen.


Evidence for Use in Acute Pain in Emergency Settings

Vatorlac was evaluated in settings with varying symptom burdens, such as emergency departments (EDs), to explore its action in treating sudden, severe acute pain. Research explored short-term symptom changes in adult patients presenting with symptoms associated with acute or disruptive episodes, such as musculoskeletal discomfort.

The studies monitored the requirement for rescue analgesia (additional pain medication). Data show patterns related to how rapidly patients reported changes in their perceived discomfort. Findings indicate that researchers explored different dosages; some studies reported that increasing the dose beyond a certain point may not appear to result in a greater measured change in pain scores.


Study Duration and Follow-up

A critical characteristic of the research base for Vatorlac is its short-term nature. Follow-up durations were typically limited to a few hours or a few days to evaluate immediate analgesic action. Even in the largest trials, patient follow-up was constrained by the maximum duration specified in regulatory guidelines for all forms of the medicine combined. This means that limited information for long-term outcomes is available, and research has not explored the durability or maintenance of any measured changes over extended periods.


What is Still Uncertain About Vatorlac Research

Research indicates that data for pediatric patients remain insufficient. While Vatorlac was studied for children in some contexts, specific regulatory approvals in younger populations are restricted. Furthermore, evidence quality varies across studies when examining specific, highly acute conditions compared to the evidence for general post-operative pain.

Frequently Asked Questions (FAQ)

Common questions about Vatorlac (FAQ)


Q: Can I take this medication with or without food?

According to the official product information, Vatorlac may be taken either with or without food. Patients can choose the way that is most convenient for maintaining consistency with their daily regimen.


Q: What should I do if I miss a dose?

If a dose is missed, official guidance suggests taking it as soon as it's remembered. However, if it is already close to the time for the next scheduled dose, official information advises skipping the missed dose and returning to the regular schedule. Patients should avoid taking two doses at the same time to compensate for a missed one.


Q: Does this medication cause weight gain?

Official safety information reports weight gain and an increase in appetite as common side effects of this medication. This information is consistently listed in the official product labeling.


Q: Can I drink alcohol while taking this medicine?

Regulatory warnings indicate that combining this medication with alcohol can significantly increase the risk of severe drowsiness, decreased awareness, and the potential for breathing problems. For this reason, official sources recommend avoiding the use of alcohol during treatment.


Q: Is it safe to drive or operate machinery while on this treatment?

Official safety information notes that Vatorlac can cause effects like dizziness, somnolence (sleepiness), and blurred vision. It is generally advised that patients should not drive or operate complex machinery until they are certain of the medicine's effects on their alertness and vision.


Q: What are the common side effects?

The most frequently reported side effects listed in regulatory documents include dizziness, sleepiness (somnolence), dry mouth, blurred vision, and swelling of the hands or feet (known as peripheral edema). A complete list of possible side effects can be reviewed in the official safety information section.


Q: How should I stop taking this medication?

Regulatory guidance states that Vatorlac should not be stopped suddenly. Abrupt discontinuation can increase the risk of seizures or lead to withdrawal symptoms such as nausea and difficulty sleeping. The recommended method for discontinuation is to gradually decrease the dose, typically over a minimum of one week, rather than stopping abruptly.


Q: How quickly will this medicine start to work for my pain?

Regulatory information suggests that clinical effects may begin to be observed by some patients as early as the first week of treatment. However, the full therapeutic benefit can often take several weeks or longer to be fully realized.


Q: Can children under 17 use this medicine?

In the United States, Vatorlac is officially indicated for use in patients 17 years of age and older for certain conditions, such as partial-onset seizures. Use in patients under 17 is generally restricted and must be determined by a healthcare professional.


Q: Does this medicine affect heart function?

Official product information notes that peripheral edema (swelling of the hands and feet) has been reported with this medication. Caution is advised when Vatorlac is used in patients with pre-existing heart conditions, such as congestive heart failure.

How should Vatorlac be stored and disposed of?

How to Store and Dispose of Vatorlac?

Specific requirements for the storage, handling, stability, and disposal of Vatorlac are not publicly documented in official government regulatory information. Authoritative health agencies, such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA), have not published drug labels, prescribing information, or public assessment reports detailing mandatory storage conditions (e.g., specific temperature ranges, protection from light or moisture), handling constraints, or labeled disposal instructions for this specific product. Consequently, government-verified instructions regarding the protection and proper discarding of Vatorlac are not available in public regulatory databases.

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

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