Ketospray

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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 Ketospray

Property Description
Active ingredient Ketoprofen
Form Oromucosal Spray (Liquid formulation)
Pharmacological class Nonsteroidal Anti-Inflammatory Drug (NSAID)
General purpose Pain relief and inflammation reduction
Origin Synthetic compound

1. What Type of Medicine is Ketospray and Its Origin?

Ketospray is a defined medicinal product whose core therapeutic substance is the active ingredient, Ketoprofen. This compound is categorized as a Nonsteroidal Anti-Inflammatory Drug (NSAID). Ketoprofen is chemically identified as a synthetic compound derived from propionic acid, placing it within the arylpropionic acid group. The International Nonproprietary Name (INN), Ketoprofen, signifies its established identity as both an anti-inflammatory agent and an analgesic. Its function as an NSAID is recognized for managing pain associated with inflammatory responses.

2. The Formulation: Ketoprofen as an Oromucosal Spray

The Ketospray preparation is a monosegmental preparation—a single-ingredient drug—presented as an oromucosal spray, which is a liquid formulation. This specific dosage form is designed for local administration via the oral cavity. This targeted delivery method, unlike systemic ingestion forms of Ketoprofen, is designed to focus the anti-inflammatory effect where applied. The product utilizes an aqueous or hydroalcoholic base/vehicle to deliver the active ingredient.

3. General Purpose: What is the Primary Benefit of This NSAID?

The general purpose of Ketospray is to provide focused pain relief and support inflammation reduction through the action of Ketoprofen. This benefit stems from the drug's mechanism as a cyclooxygenase (COX) inhibitor. This means the medicine helps ease discomfort by interrupting the fundamental biochemical pathway that triggers swelling and pain signals. The primary benefit of the anti-inflammatory agent in this local spray format is to manage inflammatory symptoms directly at the site of application.

What side effects are possible with Ketospray?

Possible Side Effects and Safety Information

Ketospray, a local preparation containing the Nonsteroidal Anti-Inflammatory Drug (NSAID) Ketoprofen, has a safety profile documented by regulatory agencies that includes both local administration site reactions and a requirement to acknowledge potential systemic risks associated with the NSAID class.

Documented Adverse Reactions

The most frequently reported adverse reactions are localized to the area of application. These uncommon effects primarily involve the oropharyngeal area and include a burning sensation and local irritation of the mouth and throat. These reactions are often reported as being more frequent at the initiation of treatment and may diminish with continued exposure.

Classification System-Organ Classes Involved
Local Reactions General Disorders and Administration Site Conditions
Immune Immune System Disorders; Skin and Subcutaneous Tissue Disorders

Serious Adverse Reactions and Safety Constraints

The safety labeling also documents rare but clinically significant adverse reactions and constraints. These include the potential for severe hypersensitivity reactions, suchising anaphylaxis or angioedema (swelling of the face or throat). As a regulatory requirement, the full range of serious systemic NSAID class effects—such as gastrointestinal ulceration, bleeding, and cardiovascular thrombotic events—are listed, although the risk is greatly reduced with this local formulation.

The medicine is officially contraindicated in individuals with a known hypersensitivity to Ketoprofen, aspirin, or other NSAIDs, particularly those with a history of NSAID-induced asthma. Caution is also advised when considering use in older adults due to their potential increased susceptibility to systemic NSAID effects and in the third trimester of pregnancy.

Photosensitivity risk is documented, requiring that direct sunlight be avoided during treatment.

Overdose and Emergency Response

Overdose and when to seek help

The active ingredient in Ketospray, Ketoprofen, has a defined overdose profile documented in official regulatory sources. Individuals who suspect an overdose must seek immediate medical help and contact emergency services, as no specific antidote is known for acute Nonsteroidal Anti-Inflammatory Drug (NSAID) toxicity.

Documented Overdose Manifestations

Official labeling indicates that most acute overdoses may present with symptoms that are often reversible with supportive care. Manifestations primarily affect the gastrointestinal tract and the central nervous system (CNS).

System Documented Signs/Symptoms
Gastrointestinal Nausea, vomiting, epigastric pain, and diarrhea.
CNS Lethargy, drowsiness, confusion, headache, and dizziness.

Severe and Life-Threatening Outcomes

Regulatory documents specify that a large Ketoprofen overdose may lead to serious or life-threatening outcomes. These severe manifestations include coma, convulsions (seizures), acute renal failure, and severe gastrointestinal bleeding.

Mandated Emergency Response

Treatment must be strictly symptomatic and supportive. Regulatory guidance states that procedures such as administering activated charcoal for gastrointestinal decontamination and managing severe effects with IV fluids or anti-seizure medication may be required. Hospital monitoring of vital signs, blood tests, and cardiac function is necessary in all suspected overdose cases.

Therapeutic Uses of Ketospray

The action of this medication is focused on providing symptomatic relief for discomfort and inflammation in the oral and pharyngeal (throat) area. The active ingredient is applied in managing symptoms related to inflammatory or irritative states. This support is commonly used across conditions presenting with acute or episodic manifestations, such as pharyngitis, stomatitis, and gingivitis, or other irritative states characterized by significant discomfort. It supports short-term symptomatic assistance, which contributes to easing the overall symptom load during periods of heightened symptoms.

The core benefit is the symptomatic relief of acute pain and soreness in the mouth and pharynx, particularly the symptoms that interfere with daily functioning, such as difficulty swallowing (odynophagia). Applied during phases when symptoms become more noticeable, this medicine offers supportive relief that supports the patient during difficult episodes by easing distress. It is also relevant in situations requiring temporary assistance in symptom stabilization, such as discomfort and inflammation following minor dental surgery or periodontal procedures.

“It provides focused symptomatic support directly where localized pain and swelling are present.”

Quick Fact: Relief for Acute Oral & Throat Discomfort

Regulatory References

  1. NIH MedlinePlus overview of Ketoprofen

Eligibility and Restrictions for Use

Ketospray (Ketoprofen Oromucosal Spray) eligibility is defined by official regulatory documentation, primarily establishing use for Adults. However, regulatory labels set specific criteria for ineligibility and conditional use.

Populations Who Must Not Use

The medicine is strictly contraindicated for any patient with a known hypersensitivity to Ketoprofen, aspirin, or other Nonsteroidal Anti-Inflammatory Drugs (NSAIDs), or a history of severe allergic reactions such as asthma, bronchospasm, or allergic rhinitis. Absolute prohibition also applies to patients with pre-existing severe heart failure, severe renal failure, severe hepatic insufficiency, and those with an active peptic ulcer or history of severe gastrointestinal hemorrhage.

Age and Life Status Restrictions

Use is contraindicated during the third trimester of pregnancy and is not recommended for breastfeeding women due to the potential transfer of the active substance. Additionally, the medicine is not recommended for children and adolescents under 15 years because safety and efficacy data are not fully established for this age group.

Conditional Use

Elderly patients and individuals with pre-existing conditions such as mild-to-moderate renal or hepatic impairment are advised to use the medication only with caution and monitoring, as they present an increased risk profile.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Regulatory documentation for the active substance Ketoprofen (a Nonsteroidal Anti-Inflammatory Drug or NSAID) identifies specific interaction patterns that impose restrictions on co-administration.


Official Interaction Restrictions

Category Documented Interaction Statement
Prohibited Combinations Co-administration with other NSAIDs (e.g., Ibuprofen, Naproxen) and Aspirin (Acetylsalicylic Acid) is officially restricted due to the increased cumulative risk of serious adverse events.
Pharmacodynamic Risk Concomitant use with Anticoagulants (e.g., Warfarin, Heparin) and Corticosteroids is associated with a documented increased risk of bleeding or hemorrhage.
Therapeutic Antagonism The efficacy of ACE Inhibitors, Angiotensin Receptor Blockers (ARBs), and Diuretics may be officially diminished by the NSAID component.

Exposure and Clearance Alterations

Specific medicines are documented to have their plasma exposure modified. Ketoprofen reduces the renal clearance of both Lithium and Methotrexate, leading to officially stated elevated plasma concentrations for these medicines. Conversely, Probenecid is documented to reduce the clearance of Ketoprofen, resulting in an increase in Ketoprofen exposure.

Substance and Population Warnings

Warnings are documented for concomitant use with Alcohol, which increases the risk of gastrointestinal adverse effects. Specific Herbal Products (e.g., Ginkgo, Garlic) are also noted for their potential to increase bleeding risk. Furthermore, the risk of renal function deterioration is officially noted as being heightened when co-administering ACE Inhibitors or ARBs in elderly or renally impaired populations.

Mechanism of Action

Ketoprofen's mechanism involves the non-selective, reversible inhibition of the Cyclooxygenase ( COX) enzymes, targeting both the COX-1 and COX-2 isoforms. This molecular action interrupts the conversion of the precursor arachidonic acid, thereby limiting the synthesis of key lipid mediators in the body.

The inhibition of COX activity restricts the availability of PGE2, a lipid signaling molecule that sensitizes peripheral nociceptors. By limiting the production of this mediator at the local site, the mechanism reduces the chemical sensitization of the local nociceptive system. This action results in a functional elevation of the pain threshold and contributes to the physiological modulation of vascular permeability.

The oromucosal spray delivery ensures rapid local tissue exposure to the target COX enzymes, which facilitates the mechanism-dependent kinetics of the molecular interaction. The mechanism is constrained by its local action focus, resulting in functional relevance primarily for peripherally-driven processes, with minimal modulation of CNS pain pathways.

Dosage and Administration Information

How to Use Ketospray: Administration Guidelines

Ketospray is an oromucosal spray intended strictly for local application to the tissues of the mouth and throat. This preparation contains Ketoprofen Lysine Salt as a 0.16% liquid solution, and its usage follows specific parameters concerning route, dose, frequency, and duration of use.


Dosing and Schedule

Administration is designed to be symptomatic and restricted to short-term periods of treatment.

Usage Parameter Standard Specification
Route of Administration Oromucosal (local application)
Standard Adult Dose 1 to 2 sprays per application to the affected area.
Active Ingredient per Spray Approximately 0.32 mg of the active substance.
Maximum Frequency Limited to up to 3 times per day.
Duration Constraint Restricted to short periods of treatment only.

Administration Method and Constraints

The usage protocol emphasizes direct, non-systemic application. The nozzle of the spray device is directed toward the painful or inflamed site within the oral cavity or pharynx. It is a technical instruction that the solution must not be swallowed. The product is used directly from the device and requires no preparation or dilution prior to administration.

For age-group administration, the safety and efficacy of the oromucosal spray formulation have not been established in children.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Ketospray

The research surrounding the active ingredient in Ketospray, Ketoprofen, focuses on research exploring short-term symptom changes in the oral cavity. This overview describes the types of studies that have been conducted and the limitations of the available evidence, based only on official and peer-reviewed scientific sources.


Evidence for Acute Oral and Throat Discomfort

The use of Ketoprofen for localized delivery has been studied for conditions characterized by acute or disruptive episodes in the throat and mouth, such as pharyngitis (sore throat) and mouth inflammation. Researchers primarily rely on short-term Randomized Controlled Trials (RCTs) and Systematic Reviews investigating outcomes linked to inflammatory or irritative states. These studies often compared the active ingredient solution against a non-medicated solution.

Researchers monitored outcomes related to physical discomfort, including measurements of change in pain intensity and functional symptoms like difficulty swallowing (odynophagia). Findings describe patterns observed in studies over a short course of administration. However, a key gap is that the evidence is often derived from studies that used a closely related topical solution (like a gargle) rather than the precise oromucosal spray dosage form.


Evidence for Managing Pain After Minor Dental Procedures

Research explores the active ingredient's role in studies focusing on post-operative pain and inflammation following minor dental procedures. These short-term RCTs examined patterns of acute pain control and measured changes in postoperative pain intensity and the need for rescue analgesia over defined observation intervals. A limitation is that much of the foundational evidence regarding the active ingredient’s properties in controlling post-operative pain uses systemic (oral) administration of the drug as the primary model, rather than the localized spray.


Evidence Gaps and Follow-up Periods

Research conducted so far is aligned with studies exploring short-term symptom changes. Consequently, the follow-up durations were limited in most key studies. Long-term outcomes are not well characterized, and there is limited information for repeated or chronic use. Research data for certain patient groups, such as those with complex concurrent health situations (comorbidity-defined groups), remain insufficient, meaning results apply only to the populations studied.

Key Studies & References Ketoprofen Oral Dosage Form: General Overview and Pharmacological Classification (Used for consistency check on drug properties)

Frequently Asked Questions (FAQ)

Common questions about Ketospray (FAQ)

Q: What health condition is Ketospray officially used to address according to regulators?

A: Official documents state that Ketospray (Ketoprofen oromucosal spray) is specifically indicated for the symptomatic treatment of acute inflammation in the mouth and throat, such as pharyngitis (sore throat). The active ingredient is classified as an NSAID, a drug category known for addressing pain, swelling, and inflammation. The local spray formulation is intended to provide these effects at the site of application.

Q: Why do some users online claim Ketospray works faster than comparable treatments?

A: Official pharmacokinetic studies help explain why users may perceive rapid effects. Localized delivery systems, like the spray, are designed to put the active ingredient directly onto the inflamed tissues. This design helps achieve a local action rapidly, which may contribute to the perceived faster onset of relief compared to systemic (swallowed) drug forms.

Q: Is Ketospray intended to be used on an 'as needed' basis or following a regular schedule?

A: Official product information describes the medicine as intended for symptomatic relief. Administration may be on an 'as needed' basis when symptoms occur, or by following the specific schedule provided by the prescribing healthcare professional.

Q: What specific signs or symptoms would suggest a person is experiencing an allergic reaction to Ketospray?

A: Official product information lists signs that may suggest an allergic reaction, which include the occurrence of a rash, hives, or swelling, such as angioedema (swelling of the face or throat). As a safety precaution, official labeling also lists severe hypersensitivity reactions.

Q: Can Ketospray be used if a person is currently taking prescription blood pressure medication?

A: The official interaction warnings indicate caution is necessary when using this medicine alongside specific blood pressure medications, such as ACE inhibitors or Angiotensin Receptor Blockers (ARBs). The combination may be associated with a reduced therapeutic effect of the blood pressure medicine, and a heightened risk of kidney impairment has been noted.

Q: Are there any specific food or drinks, like grapefruit juice, that should be avoided when using Ketospray?

A: Regulatory documents specifically warn against the consumption of alcohol, as this increases the risk of gastrointestinal side effects associated with NSAIDs. General food interactions are not typically highlighted for this local spray formulation.

Q: Can people with pre-existing chronic conditions, like kidney disease or heart conditions, use Ketospray?

A: Official documents list severe heart, kidney, or liver failure as contraindications for this medicine. For individuals with less severe impairment, the official labeling requires caution and monitoring due to potential increased susceptibility to NSAID effects.

Q: How does the systemic absorption of Ketospray compare to similar drug formulations in a pill or capsule?

A: Studies on the local spray formulation indicate that the systemic plasma concentration of the active ingredient is significantly lower compared to when the same drug is administered as an oral pill or capsule. This is because the spray is intended to work locally, minimizing drug exposure throughout the rest of the body.

Q: What should be done if a person accidentally swallows some of the spray while using it?

A: Regulatory guidance emphasizes that the spray solution should not be swallowed. If a large amount is accidentally ingested or if concerning symptoms occur, official safety advice suggests contacting a poison control center or seeking emergency medical attention.

Q: Have the Phase 3 clinical trials for Ketospray been officially published or peer-reviewed?

A: Regulatory bodies require that key safety and efficacy data, typically derived from Phase 3 clinical trials, be submitted and summarized in public assessment reports to support product approval. The availability of this information in official review summaries allows for transparency regarding the evidence base.

Q: What is the general guidance if a person forgets to use the spray?

A: If a use is missed, the recommended guidance is to apply it as soon as it is remembered. However, if it is almost time for the next scheduled application, the missed use should be skipped. Official instructions indicate that a person should not apply two doses at once.

Q: How long does it typically take for a person to notice the intended effect from Ketospray?

A: Pharmacokinetic and pharmacodynamic studies suggest that the onset of pain relief may occur approximately 30 minutes after application. The actual time required to notice the intended effect may vary among individuals and depends on the specific condition being treated.

Q: What is the average duration of effect after a single application?

A: According to official drug information, the duration of the analgesic effect from a single application is variable. The effect may last shorter than the maximum recommended time interval between applications.

Q: Is there any evidence that the body can become dependent on Ketospray over time?

A: The active ingredient, Ketoprofen, is classified as a Nonsteroidal Anti-Inflammatory Drug (NSAID) and is not a controlled substance. Official safety profiles do not indicate a risk of physical dependence or addiction.

Q: Can Ketospray lead to changes in a person's appetite or body weight?

A: Regulatory documents list changes in appetite and body weight as potential side effects of the active ingredient. These include documented, though uncommon, occurrences of loss of appetite (anorexia) and weight gain due to fluid retention or edema.

Q: Is it officially recommended that patients report any unexpected side effects to a central registry?

A: Yes, regulatory agencies worldwide, such as the FDA (MedWatch) and the EMA, officially encourage patients, consumers, and healthcare providers to voluntarily report any suspected adverse events or safety issues to a central national registry.

Q: Does Ketospray carry a 'Black Box Warning' or similar prominent safety notice in its labeling?

A: The active ingredient, as an NSAID, is associated with a prominent safety notice regarding the potential for serious cardiovascular and gastrointestinal risks. These systemic risks are listed on the product label.

Q: Does a person's history of substance dependence impact their eligibility?

A: Official drug labels for non-scheduled medicines generally do not list a history of substance dependence as a direct contraindication. Regulatory guidance emphasizes that all medicines must be used exactly as prescribed by a healthcare professional.

Q: What is the suggested way to hold the bottle to ensure the spray is administered correctly?

A: The official Instructions for Use emphasize the importance of directing the nozzle towards the inflamed or painful area within the oral cavity. Detailed instructions for the proper handling and positioning of the device are provided in the Patient Information Leaflet included with the product.

Q: What steps should be taken if the spray nozzle appears to be blocked or stops working?

A: Official product documentation includes troubleshooting guidance for the device. If the nozzle appears blocked or the spray stops working, official guidance suggests referring to the product’s Instruction for Use sheet or contacting a pharmacist for assistance.

Q: Does Ketospray contain any common allergens like gluten, dairy, or sulfites?

A: Official regulatory documents, such as the Summary of Product Characteristics (SmPC), contain a full list of all inactive ingredients, or excipients. This information allows patients to check the formulation for the presence of common allergens like gluten, dairy, or sulfites.

Q: Is Ketospray supposed to have a noticeable taste or odor when it is administered?

A: The official list of ingredients (excipients) confirms the inclusion of flavoring agents, such as peppermint oil. This means the spray is designed to have a noticeable taste or odor when it is administered.

Q: Is it safe to use Ketospray if a person currently has mouth sores, gum irritation, or recent dental work?

A: Regulatory warnings advise caution when applying the spray to mucous membranes. If the integrity of the oral lining is compromised by severe open sores or recent wounds, consulting with a healthcare professional before use is advisable.

Q: How many uses or sprays are contained in a standard single bottle of Ketospray?

A: The official packaging and product information specifies the capacity of a standard bottle and the exact number of metered sprays it contains. This information is typically found in the regulatory documentation detailing the container's contents.

How should Ketospray be stored and disposed of?

The storage and disposal of Ketospray (Ketoprofen Oromucosal Spray) must strictly follow the requirements set by regulatory authorities to maintain product stability and safety.

Official Storage Requirements

Condition Regulatory Mandate
Temperature Store at Controlled Room Temperature (20 C to 25 C).
Protection Keep from freezing, and protect from excessive heat, moisture, and direct light.
Container Keep the product in its tightly closed container.
Child Safety Keep out of the reach of children (store locked up).

Stability and Disposal

Liquid multi-dose sprays often have a limited stability period after first opening (e.g., 28 days to 3 months) after which the remainder must be discarded, regardless of the product's listed expiry date. For disposal of any unused or expired spray, official instructions require patients to ask a healthcare professional or pharmacist for guidance. Do not dispose of the medicine by flushing it down the toilet or pouring it into a drain, as regulatory guidance restricts product release into wastewater.

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

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