Trifexis For Cats To Prevent Worms And Fleas

Trifexis for cats is used to prevent the heartworm disease, to treat and control roundworms, hookworms, and whipworms. You can take Trifexis to eliminate fleas and to prevent the flea infestations.

The medicine can be useful if you want to prevent the infections of roundworms, hookworms, whipworms, and fleas. However, the medicine is effective if you can give it properly according to the instructions from your vet. Keep in mind that you should only give the medicine under your vet’s control. You cannot directly give it to your cat without having any recommendation from your vet. Usually, your vet will check your cat first to make sure about the infection of fleas and worms. Your vet will also check your cat from any allergy of spinosad and milbemycin oxime.

Trifexis For Cats – The Dosage

To give Trifexis to your cats, you should see your vet and follow his instructions. You should give it orally per month with the dose of 13.5mg/lb spinosad as well as 0.2mg/lb milbemycin oxime body weight. To prevent heartworm, you should give it to your cats per month, for at least 3 months after the bite of mosquitoes. You should also monitor your cat for one hour after dosing to make sure that your cat does not vomit. If your cat vomits, re-dose it with another full dose of the pill since these may have been spilled out.

Missed Dosage

If you miss a monthly dose of Trifexis, give the dose immediately with food and then continue the monthly dose on the new schedule in order to minimize the chance of the development of adult heartworm infestations as well as flea. It is important not to give two doses of Trifexis for your cat at once.

Potential Side Effects

The side effects of Trifexis are rare if you can give the recommended dose. The possible side effects are vomiting, decreased appetite, lethargy, and skin irritation.

It is important to contact your vet immediately if you find the side effects. Feline may have higher risks of vomiting.


If the treatment that is not more than 3 monthly doses, after the exposure of mosquitoes cannot complete the heartworm prevention. You should test your cats first from any existing infection. It is important to use the medicine carefully in breeding females. There is no evaluation of using Trifexis in breeding males. It is important to use it carefully in cats with pre-existing epilepsy. Trifexis for cats is not recommended for cats with an allergy of spinosad or Milbemycin Oxime.

You should also talk to your vet if your cats are taking other medications.

Sign Of Overdose or Toxicity

Cats that are overdose of Triflexis may have some problems like vomiting, tremors, salivation, coughing, decreased activity, and vocalization. If it happens to your cat, it is important to contact your vet or visit an emergency vet clinic immediately.

In another word, if you give it without the recommendation of your vet, you do not know about the presence of worms and fleas to your cat. In addition, you do not know about the potential allergy.