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Bravecto M

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Bravecto M

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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.

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Overview of Bravecto M

Quick Facts

Property Description
Active ingredient Fluralaner
Form Highly palatable chewable tablet (oral formulation)
Pharmacological class Systemic ectoparasiticide (Isoxazoline)
General purpose Long-term treatment and prevention of flea and tick infestations
Origin Synthetic chemical compound

What is Bravecto M and its Classification

Bravecto M is a veterinary prescription-only medicine intended specifically for dogs, containing the active substance Fluralaner, which functions as a systemic ectoparasiticide. This product belongs to the isoxazoline chemical class, a modern group of synthetic compounds developed to provide effective arthropod control. The medicine’s single active substance, Fluralaner, is structurally distinct and synthesized to provide a focused biological action.

Composition, Form, and General Purpose

As a single-ingredient product, Fluralaner is the sole therapeutic agent. The medicine is supplied as a highly palatable chewable tablet, which is an oral formulation designed to simplify administration and ensure reliable ingestion by the dog. The general purpose of this ectoparasiticide is the treatment and prevention of infestations by external parasites such as fleas and ticks. This medicine is categorized under the pharmacotherapeutic group of Ectoparasiticides for systemic use, Isoxazolines.

Systemic Action and Protection

The medicine provides systemic protection because Fluralaner is absorbed into the dog’s bloodstream after the chewable tablet is consumed. This method of administration ensures that the animal's circulatory system acts as an internal protective barrier against feeding parasites. This approach establishes persistent killing activity, which is a key feature leading to the drug’s characteristic sustained efficacy in managing infestations.

Regulatory References

  1. Bravecto EPAR on the EMA website
  2. EMA Fluralaner pharmacotherapeutic group ATCvet code QP53BE02
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What side effects are possible with Bravecto M?

Possible Side Effects and Safety Information

The safety profile for Fluralaner, the active substance in Bravecto M, is established through mandatory regulatory documentation and pharmacovigilance reports submitted to governmental health authorities. The documented adverse reactions are categorized by the physiological system they affect and their expected frequency of occurrence.


Adverse Reaction Scope

Category Regulatory Classification
Common (1 to 10 in 100 animals) Gastrointestinal Disorders (vomiting, diarrhea, anorexia), and General Disorders (lethargy). These effects are generally documented as mild and transient.
Very Rare (less than 1 in 10,000 animals) Nervous System Disorders, including seizures, tremors, and ataxia (loss of coordination).

Regulatory Safety Notes

Adverse reactions involving the Nervous System (seizures, tremors, ataxia) are documented as potentially serious events, although they are classified as Very Rare in frequency. This classification informs the official requirement for caution.

Population-Specific Considerations: Official labeling includes warnings regarding the use of Fluralaner in dogs with a documented history of epilepsy or pre-existing seizure disorders. Furthermore, safety has not been fully established for use in breeding, pregnant, or lactating dogs; therefore, its use is subject to an individual benefit-risk assessment.

Safety Restrictions: Bravecto M is contraindicated in dogs with a known hypersensitivity to the active substance, Fluralaner, or to any of the product’s excipients, as this poses a significant safety limitation.

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Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents for Fluralaner state that overexposure may result in documented clinical manifestations affecting two primary systems: the gastrointestinal system and the central nervous system (CNS). Overdose safety studies in healthy puppies, including administration up to five times the maximum recommended dose, generally showed no adverse reactions, establishing a documented safety margin in healthy animals.

Documented Manifestations and Severe Outcomes

Manifestations observed in regulatory and post-marketing reports include transient gastrointestinal effects such as vomiting, diarrhoea, decreased appetite, and drooling. The FDA and EMA explicitly note that the isoxazoline class may be associated with neurological adverse events. The potentially serious manifestations documented include muscle tremor, ataxia (incoordination), and convulsions or seizures.

Immediate Actions Mandated by Regulators

The officially documented guidance requires immediate action if severe signs are observed. Any manifestation of a convulsion or seizure necessitates contacting a veterinary clinic immediately. Use of this product requires caution in animals with pre-existing epilepsy or neurologic disorders. In the event of accidental human ingestion, the regulatory guidance mandates seeking medical advice immediately and presenting the product label to the physician. Management of overdose is limited to symptomatic and supportive treatment, as no specific antidote is currently documented in the official labeling.

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Therapeutic Uses of Bravecto M

What Bravecto M Treats: Main Uses and Benefits

The medicine is used to provide therapeutic support that is considered relevant against external parasites and the associated health consequences, focusing exclusively on relief, control, and prevention. This medication is commonly used for the treatment and control of tick and flea infestations.

Bravecto M is applicable in clinical settings that involve acute or disruptive symptom patterns, and its use is relevant for conditions such as Flea Allergy Dermatitis (FAD), demodicosis, and sarcoptic mange. It may assist with easing the intense itching and supports the management of skin lesions associated with these conditions.

“The sustained protection provided by the medication helps improve day-to-day comfort during symptomatic periods and assists with maintaining functional stability.”


Quick Fact: Relief for Pruritic Symptoms

Category Clinical Context Patient Benefit
Symptom Cluster Intense Pruritus (Itching) Contributes to improved comfort by easing the overall symptom load related to scratching.
Condition Framing FAD Management Helps maintain stability in chronic skin conditions by addressing the symptoms related to inflammatory or irritative states.
Use Scenario Long-term Control Provides supportive relief by contributing to the management of recurrent parasite burdens.

Regulatory References

  1. European Medicines Agency product documentation
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Eligibility and Restrictions for Use

The eligibility for using Bravecto M (fluralaner) is strictly defined by official regulatory documentation, focusing on population-specific restrictions and exclusions. The medicine is contraindicated for any dog with a known or suspected hypersensitivity to the active substance fluralaner or to any of the product’s excipients.


Age- and Weight-Based Eligibility

Eligibility is restricted by minimum age and weight thresholds, which vary by regulatory region.

Region Minimum Age Minimum Weight
US (FDA Label) 6 months of age 4.4 pounds (approx. 2 kg)
EU (EMA Label) 8 weeks of age 2.0 kg

Use is not recommended in puppies below these minimums due to insufficient established efficacy or safety data for the full duration.


Conditional Restrictions and Status

A "Use with caution" warning is officially documented for dogs with a history of seizures or other neurological disorders, as required by the regulatory classification. Conversely, safety has been demonstrated, and the medicine is permitted for use in breeding dogs, pregnant dogs, and lactating dogs, thereby removing reproductive status as a regulatory restriction.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Fluralaner (Bravecto M) focuses on documented requirements for administration and the official assessment of drug-drug combinations, with no known contraindications based on interaction with other medicinal products.

Documented Interaction Status

Classification Finding in Regulatory Sources
Observed Clinical Drug-Drug Interactions None observed in clinical field studies with routinely used products
Contraindicated Combinations None known
Population-Specific Interaction Notes None explicitly documented

Official Regulatory Statements

Official regulatory documents confirm that no adverse reactions were observed when Fluralaner was administered concurrently with other commonly used veterinary medicinal products, including vaccines, anthelmintics, antibiotics, and steroids.

The drug is highly bound to plasma proteins, which established a theoretical basis for interaction with other highly protein-bound active substances like Non-steroidal anti-inflammatory drugs (NSAIDs) and the coumarin derivative Warfarin. However, in vitro studies formally assessed by regulatory authorities demonstrated no reduction in the protein binding of the tested competitor drugs, thus supporting the finding of no clinical interaction.

Procedural Interaction Constraint

Co-administration with food is a mandatory procedural constraint because it is required to achieve and maintain optimal systemic exposure. This is due to the documented effect of food significantly increasing the bioavailability of the active substance.

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Mechanism of Action

Dual Mechanism on Parasite Nervous Systems

The drug's action relies on two distinct active molecules, fluralaner and moxidectin, that both target ligand-gated chloride channels (LGCCs) within the nervous and neuromuscular systems of target invertebrate parasites. This dual mechanistic approach capitalizes on the structural differences between invertebrate and host LGCCs, providing the basis for selective engagement.

Fluralaner acts as a non-competitive blocker of these LGCCs, particularly those regulated by the inhibitory neurotransmitters GABA and L-glutamate. This inhibits the normal chloride ion flow, resulting in unchecked nerve activity, hyperexcitation, and subsequent paralysis in external arthropods.

Moxidectin acts as an agonist, causing a sustained influx of chloride ions that leads to membrane hyperpolarization and flaccid paralysis of internal nematodes. This dual disruption of inhibitory nerve signaling, combined with the systemic distribution of both molecules, facilitates the incapacitation and death of susceptible internal and external targets.

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Dosage and Administration Information

How to Use Bravecto M

This section details the usage and administration instructions for the Fluralaner chewable tablet.


Administration Protocol

The medicine is an oral formulation and is administered as a single chewable tablet, given by mouth. The primary usage principle is the weight-based dosing regimen, which ensures a dog receives a minimum dose of 25 mg of Fluralaner per kilogram of body weight (11.4 mg/lb). For dogs exceeding 56 kg (123.0 lb), a combination of two tablets is used to achieve the necessary dose.


Dosing Frequency and Context

Category Instruction Details
Standard Frequency A single dose is administered every 12 weeks (3 months).
Minimum Interval Dosing intervals shorter than 8 weeks are not recommended.
Meal Context The chewable tablet must be administered with food or at the time of feeding to maximize the systemic absorption of the active substance.
Handling Restriction The tablets should not be broken or divided.

Use Limitations

The medicine is restricted by a minimum age and weight threshold. It is not to be used in puppies less than 8 weeks old and/or dogs weighing less than 2 kg (4.4 lbs). Treatment may be continued year-round without interruption to sustain protection.

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Recent Clinical Evidence

Research evidence / Overview of Studies for Bravecto M

Evidence for Use in Flea and Tick Management

Research was studied for its use in managing common flea and tick infestations in dogs. The primary evidence base consists of large-scale, controlled field studies that research examined over defined time intervals, typically 12 weeks. These studies were applied in research contexts involving fluctuating or unstable symptoms (the presence of parasites) in client-owned dogs. The outcomes relevant in evidence describing how symptoms are measured included precise counts of parasites and the time required for reduction.

Studies monitored measurements of anti-parasite activity patterns throughout the duration of the trial period. Trial reports described measurements of parasite count changes across the observation periods defined in the protocols. Comparative studies examined the time-to-onset of activity following oral administration versus other topical products. This research framework also contributes to the broader evidence landscape for dogs with flea allergy dermatitis (FAD), where achieving a state free of flea infestation was the primary objective of the study.

Evidence for Use in Mite-Associated Skin Conditions

The medicine was evaluated in studies focusing on skin conditions caused by mites, specifically generalized demodicosis and sarcoptic mange. These are conditions involving periods of heightened symptoms such as itching and skin irritation. The studies explored outcomes linked to inflammatory or irritative states and the primary goal was studied for achieving a parasitological cure, confirmed by negative skin scrapings.

For demodicosis, research describes patterns showing that mite elimination was associated with the subsequent evolution of skin lesion resolution. Similarly, for sarcoptic mange, findings describe patterns observed in the studies where mite elimination was associated with concurrent changes in clinical scores related to itching.

Study Focus on Long-Term Effectiveness

The majority of published data related to the medicine’s primary indications is derived from trials structured to confirm activity over the defined 12-week treatment interval. Follow-up durations were limited in many of these core studies. While research explores short-term symptom changes during this period, the extended long-term effects are not fully established.

Research Gaps and Remaining Uncertainties

The primary uncertainty relates to the limited information for long-term outcomes beyond the 12-week study framework used in the pivotal trials. Data are still emerging or non-existent for certain less common parasite species or specific, complex conditions characterized by fluctuating or episodic manifestations outside the defined scope of the initial research. Findings describe group patterns, not personal outcomes, and it is important to remember that study results reflect the specific conditions under which they were conducted.

Key Studies & References

  1. Bravecto, INN-Fluralaner (Summary of Product Characteristics and Public Assessment Report)
  2. BRAVECTO® (fluralaner) Chews - DailyMed (Official FDA Approved Labeling)
  3. Efficacy of fluralaner against canine generalized demodicosis
  4. CVMP assessment report for Bravecto (EMEA/V/C/002526/0000)
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Frequently Asked Questions (FAQ)

Common questions about Bravecto M (FAQ)

Q: Are there generic versions of Bravecto M currently available?

A: Regulatory documents listing the approved product only refer to the medicine by its brand name. Information on whether authorized generic versions of the chewable tablet are currently available is not typically detailed within the original brand product's official labeling.

Q: What kind of studies have been done on Bravecto M?

A: Official information indicates that studies included controlled laboratory research and large-scale, controlled field studies. These research projects were conducted to confirm the medicine's efficacy (how well it works) and to monitor its safety at the recommended dosage, as well as at higher doses to determine the safety margin.

Q: Does Bravecto M require any special monitoring or lab tests?

A: Regulatory documents include cautions for specific patient populations, such as those with a history of seizures. However, they do not detail routine lab tests or widespread monitoring requirements for all users.

Q: What types of allergic reactions are listed in the official safety information?

A: Reports of adverse events related to hypersensitivity (allergic reaction) have been documented. These reported signs included pruritus (itching), hives (urticaria), swelling, and erythema (redness). Hypersensitivity to the active substance or any non-active ingredients is listed as a contraindication (a reason the drug should not be used).

Q: What is the main difference between the mechanism of action of Bravecto M and older drugs for the same condition?

A: The active substance, Fluralaner, is part of the modern isoxazoline chemical class. The mechanism involves action on specific ligand-gated chloride channels within the parasite's nervous system, a characteristic mechanism of the isoxazoline class.

Q: Is there any data on the use of Bravecto M in the elderly?

A: Regulatory studies generally include healthy adult animals and younger subjects from the minimum age and weight thresholds. The official prescribing documents do not detail specific findings or safety data focused exclusively on geriatric or elderly populations.

Q: Is it normal to feel a minor effect that is mentioned in the list of possible side effects?

A: Gastrointestinal effects, such as mild and transient diarrhea or vomiting, are classified as 'Common' in clinical trials (observed in more than 1 but less than 10 out of every 100 animals). The classification 'Common' describes their expected frequency of occurrence.

Q: Why might the effects of Bravecto M differ from person to person?

A: Official documentation notes that following oral administration, there can be individual variation in the rate of absorption and the elimination half-life of the drug. These pharmacokinetic differences (related to how the body processes the drug) are noted as contributing to individual variation.

Q: Are there any known long-term side effects that official documents mention?

A: Adverse reactions reported in clinical trials and spontaneous reports (including nervous system disorders) are classified by their expected frequency (e.g., Very Rare). Official documents generally categorize adverse events by frequency rather than classifying them specifically as long-term or short-term effects.

Q: Does the drug's effect on the body change over time with continued use?

A: The medicine is designed to provide 'immediate and persistent' anti-parasite activity for the duration of the recommended 12-week dosing interval. Studies were structured to confirm that this persistent activity is maintained throughout the defined period.

Q: Does the medicine come in different strengths?

A: Yes, the chewable tablets are supplied in multiple dosage strengths. Each strength contains a specific, pre-determined amount of the active substance, Fluralaner, which allows the dose to be selected accurately based on the animal's body weight.

Q: Why is the drug given only through a specific route of administration?

A: The drug is given as an oral chewable tablet because it is a systemically active medicine. Taking it by mouth allows Fluralaner to be absorbed into the animal's bloodstream, which establishes the internal protective barrier against feeding external parasites.

Q: If a person has a history of certain allergies, how is that addressed in the eligibility criteria?

A: The product information states that the medicine is contraindicated—meaning it should not be used—in any animal with a known hypersensitivity or allergy to the active substance, Fluralaner, or to any of the product’s non-active ingredients (excipients).

Q: Does Bravecto M stay in the system for a long time?

A: Official information describes the medicine's elimination from the plasma as slow, with an elimination half-life generally ranging from 12 to 16 days in adult dogs. This slow elimination is what enables the drug to maintain effective concentrations for the entire 12-week dosing interval.

Q: Why are people talking about the 'M' in the drug name Bravecto M?

A: Bravecto is available in different formulations, including single-ingredient Fluralaner products and combination products that contain Moxidectin. This dual-active combination (often referenced by an 'M') offers expanded protection against both external and certain internal parasites.

Q: Is Bravecto M a type of antibiotic or something different?

A: Bravecto M is officially classified as a systemic ectoparasiticide and belongs to the isoxazoline chemical class. It is a compound developed specifically for anti-parasite activity and is not an antibiotic (which targets bacteria).

Q: How quickly is Bravecto M generally expected to start working?

A: Regulatory data indicates that the onset of effect for killing fleas is described as within 8 hours of attachment. For the tick I. ricinus, the onset of effect is described as within 12 hours of attachment following administration.

Q: Is Bravecto M available over-the-counter or does it require a prescription?

A: Official product information states that Bravecto M is a veterinary prescription-only medicine. It requires authorization from a licensed veterinarian and is not available for purchase over-the-counter.

Q: What happens if a dose is missed, according to official guidance?

A: Guidance on missed dosing for combination products advises that if the scheduled dose interval is accidentally exceeded, the product should be administered immediately. The regular dosing schedule can then be resumed from that new date of administration.

Q: Can I read the research summaries for Bravecto M?

A: Official research summaries and public assessment reports are made publicly available by regulatory authorities. These documents can be accessed through government sources such as the European Medicines Agency (EMA) and the U.S. Food and Drug Administration (FDA).

Q: Is it known to interact with common pain relievers?

A: Official documentation confirms that no adverse reactions were observed when the product was used at the same time as routinely used veterinary medicinal products, including antibiotics and steroids. Furthermore, studies have specifically examined the potential for interaction with highly protein-bound substances like Non-steroidal Anti-inflammatory Drugs (NSAIDs) and found no evidence of interference.

Q: Has Bravecto M been studied in pregnant or breastfeeding populations?

A: The safety of the Fluralaner chewable tablet has been demonstrated in reproductive studies. According to some regulatory documents, the product is permitted for use in breeding, pregnant, and lactating dogs.

Q: What is the purpose of the warning statements often seen in the drug information?

A: Warning statements are required by regulatory bodies to inform users about precautions for specific populations, such as animals with a history of seizures, specify potential serious but rare adverse reactions, and outline safe handling procedures.

Q: Why is the drug typically taken for a certain duration, as opposed to a longer or shorter time?

A: The establishment of the 12-week dosing interval is directly linked to the drug's pharmacokinetic properties. This is based on the slow elimination rate and prolonged persistence of the drug, which maintains effective concentrations for the entire inter-dosing period.

Q: What are the main things researchers look for when studying the safety of Bravecto M?

A: Researchers look for the frequency of adverse reactions across different body systems and monitor effects on food consumption and body weight. Safety is also determined by testing the drug's safety margin through administration at doses up to five times the maximum recommended amount.

Q: What patient groups were included in the main research studies?

A: The main efficacy studies included client-owned animals that had existing parasite infestations. Safety trials included young puppies (from 8 weeks old) and healthy adult dogs that were administered the product in margin of safety assessments.

Q: Is it true that Bravecto M is a controlled substance?

A: Bravecto M (Fluralaner) is classified as a veterinary prescription-only medicine. However, it is not listed as a federally controlled substance by government drug enforcement agencies.

Q: Does official information suggest any restrictions on driving or operating machinery while on Bravecto M?

A: As this is a veterinary product intended for use in animals, its official prescribing information and label do not contain any statements or warnings regarding human restrictions on driving or operating machinery.

Q: What should a patient do if they accidentally take more than the intended amount?

A: Official warnings regarding accidental human ingestion advise seeking immediate medical advice. Official warnings advise showing the product package leaflet or label to the physician in this scenario.

Q: What is the scientific basis for the recommended use of Bravecto M?

A: The recommended use is based on two key scientific principles. Pharmacodynamic studies confirm the drug's high potency against targeted parasites, while pharmacokinetic data demonstrates the systemic absorption and slow elimination required for effective, persistent activity over the 12-week period.

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How should Bravecto M be stored and disposed of?

Storage and Disposal Requirements for Bravecto Chewable Tablets

The storage and disposal of Bravecto chewable tablets are strictly governed by regulatory requirements to ensure product integrity and safety.


Official Storage and Handling

The product must not be stored above 86 F (30 C) to maintain its 2-year shelf life.

Child Safety: It is mandatory to keep the product out of the sight and reach of children and to store it in its original packaging until use.

Handling: Users are required to wash hands thoroughly with soap and water immediately after use.


Waste Disposal Rules

Disposal of any unused product or waste material must be conducted in accordance with local requirements. The active substance, Fluralaner, is persistent in the environment; therefore, the product must not be disposed of into waterways.

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

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