Many of us at MSD Animal Health are pet owners. The science of healthier animals drives everything we do – helping to ensure the safety and well-being of your pet is our top priority.

We are aware of misleading information currently circulating in social and other media regarding BRAVECTO® Chewable tablets for dogs, our flea and tick medication. This site is dedicated to correcting such misinformation and giving you the accurate facts about BRAVECTO® Chewable tablets for dogs. We know how important it is to make sure you have accurate information about our products in order to feel comfortable and confident about the medications you are giving to your pet. We encourage you to speak with your veterinarian to discuss what’s best for you.

Get the Facts

It’s easy to find all sorts of information about veterinary medicines across the internet — especially on social media. Unfortunately, some of the information shared on social media is simply inaccurate. You deserve the facts on BRAVECTO® Chewable tablets for dogs.


BRAVECTO® Chewable tablets for dogs has not been properly or adequately tested.


All of our vaccines and medicines — including BRAVECTO® Chewable tablets for dogs — go through a rigorous regulatory approval process. In fact, more than 89 markets around the world have reviewed the comprehensive research data for BRAVECTO® Chewable tablets. Overall, more than 70 clinical research studies  have been conducted in dogs at the recommended dose that provide the basis for a safe and effective use of the product consistent with the label. And there are over 170 studies when you include supporting research for other products in the BRAVECTO® family.


MSD Animal Health hides the “true facts” about BRAVECTO® Chewable tablets for dogs’ safety.


The safety of BRAVECTO® in dogs has been tested in a variety of studies of which all have to be presented to the regulatory authorities for review.  Adverse events involving BRAVECTO® Chewable tablets for dogs are reported to regulatory agencies following all appropriate requirements  Any adverse event of which the company is aware must be reported as defined by the applicable laws in the EU — even if no causal relationship is suspected. A report does not mean that the product caused the adverse reaction.


Negative incidents using Serious side effects are frequently reported for BRAVECTO®.


This is simply not the case. The incidence of all adverse reactions (including diarrhea, vomiting, inappetence and drooling) reported worldwide after the use of the product in the field remains in the category ‘rare’ (more than 1 but less than 10 animals reacted in 10,000 animals treated). Lethargy, muscle tremor, ataxia and convulsions have been reported ‘very rarely’ in spontaneous reports (less than 1 reaction reported per 10,000 treatments).

Adverse reactions are monitored by the regulators in the EU based on PSURs and supplementary risk management activities when indicated. Any updates detected through this rigorous monitoring will be reflected in the label.

A report on an adverse reaction does not mean that the treatment caused the adverse reaction. The reaction may be completely unrelated to administration of BRAVECTO®; for example, it may be related to an underlying medical condition or another product administered at the same time. In today’s digital age, social media can present a misleading picture and we recommend discussing your questions with your trusted veterinary professional.


BRAVECTO® Chewable tablets for dogs is not safe for use with other routinely used medications.


The use with other, routine medications was carefully recorded for BRAVECTO® Chewable tablets for dogs during clinical field trials. No interactions between BRAVECTO® chewable tablets for dogs and several routinely used veterinary products were observed and there are no restrictions against such uses in the label prescribing recommendations. As with any medication, always tell your veterinarian what other medicines you are giving your dog before giving your dog BRAVECTO® and always consult your veterinarian before giving your dog another medication.


BRAVECTO® Chewable tablets for dogs causes cancer and liver or kidney damage.


Clinical research data and analysis of all adverse reactions to date have not indicated a causal relationship between the recommended use of BRAVECTO® Chewable tablets and cancer or liver or kidney damage.


Holistic medicine provides a more effective alternative to flea and tick medication.


Fleas and ticks are not just a nuisance, they also pose significant health risks, including allergic skin disorders and disease transmission. Please work with your veterinarian to use effective treatments for protection against these dangerous blood feeding parasites.

MSD Animal Health Facts

Our top priority is the health of your pet.
In fact, our employees share the common goal of working together to ensure your pets are there to comfort you and be an important part of families for years to come.

We are serious about improving the health of animals around the world.
This is why we are committed to investing in the research, development and manufacturing of some of the most innovative veterinary medicines in the world. We are committed to improving the lives of animals in more than 150 countries and counting.

Our company is driven by simple core values.
We strive to be visionary, collaborative, dynamic and responsible. Whether working with veterinarians or their patients around the world, healthy pets mean happy families.

Since our early days, we have grown to become a leader whose work in animal health is unparalleled.
For more than 60 years, vaccines that protect pets from dangerous diseases, medicines to treat chronic diseases and effective parasite controls have been part of our mission to protect the health and well-being of pets.

We continue to develop innovative solutions to find new and better ways to keep pets safe and healthy.
At MSD Animal Health, our veterinarians, scientists and industry experts work together in teams centered around entire diseases affecting pets, not just single products.

Involved in global initiatives
In addition to all the great work our employees are doing to support you and your veterinarian, MSD Animal Health is involved with global initiatives such as Afya and Mission Rabies – both organizations working in Africa and India to eradicate the globe of rabies in the next 15 years.

Learn More

We know that protecting your pet’s health can be emotional. After all, many of us at MSD Animal Health have our own fur babies who are true members of our families. However, don’t let hearsay, conjecture and opinion be a substitute for truth — get the facts and discuss your questions with your trusted veterinary professional.

This information is provided in response to public discussions on BRAVECTO® and is based on the right to receive and impart information and to freedom of expression. It is not intended as promotion for the product but contains product specific information. If you would like more information please consult a trusted veterinary professional, or contact us at Animal-Health-Communications@msd.comFor information on risks and adverse events please read the package insert. Please refer to the product label approved for your country. Note, labels may differ country by country.

Commonly observed adverse reactions in clinical trials (1.6% of treated dogs) were mild and transient gastrointestinal effects such as diarrhea, vomiting, inappetence, and drooling.