A light brown and white dog sitting in the grass and scratching fleas off his neck.

Fleas and ticks are pesky bugs we want to keep away from our dogs, and this often must involve medication. It’s natural to wonder which flea and tick medication is best for your canine, but how can you know? Credelio is one common medication for dogs, but is it right for your dog? Read more to find out.

What is Credelio?

Credelio is a medication used to treat the effects-including the infestation-of ticks and fleas on dogs. Credlio is FDA-approved for veterinary use in dogs at least eight weeks old and at least 4.4 pounds in weight.

Is Credelio safe for dogs?

It depends. Dogs who are bred or will be bred, as well as pregnant and nursing dogs, should not take Credelio in most cases. Talk to your veterinarian about the safety of your dog taking Credelio, as these might not be the only instances where it is unsafe to administer this medication to your dog.


Dosage may differ for every dog, depending on their age, weight, any medication(s) they take and any medical condition(s) they have. It is critical that you always consult your veterinarian for personalized dosing advice for your dog.

The FDA states the following as a general dosing guideline:

  • 9mg per 1 pound of body weight once per month

The above is the minimum dosage recommendation. Again, it is critical that you talk to your pet’s veterinarian about specific dosing instructions, as health conditions and medications can affect dosing safety.

Side Effects

Your dog might experience certain side effects during treatment with Credelio. If you notice your dog acting differently after administering a dose of Credelio to them, call their veterinarian immediately. Some side effects may pose serious threat to your dog’s health.

Potential side effects, according to 1-800-PetMeds, include but are not limited to:

  • Weight loss
  • Diarrhea
  • Increased urination

Final Thoughts

There are many types of flea and tick medications available for dogs finding the right one for your pet might seem like a challenge. If you are a new dog owner or want to try a new flea and tick medication, make sure to consult your veterinarian for recommendations that are personalized to your dog’s needs. Credelio is one medication you can ask about.

Disclaimer: This article does not constitute professional medical advice, nor can it replace the advice of a licensed professional.

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