I missed my dog's flea prevention dose. Can I give it now?

It shouldn’t be a problem for heartworm prevention, and while the length of time that the flea and tick prevention stays effective is variable as long as you don’t see fleas or ticks you should be fine.

Hi there. Just give him the regular dose, giving two doses at once isn't safe and since you are giving him his regular dose he'll be covered for fleas/ticks/mites for 35 days. I hope that helps. Thanks for using Petco Pet Education Center, formerly Petcoach.

No, there is no need to go to the vet for missing the dose. Your dog should be fine. SHould there be microfilariae present, the next dose you gave should kill them. Just keep giving the heartworm medication as prescribed. Your dog will need a heartworm test anyway every year. No worry!

Most of the monthly oral preventatives have a wide safety margin. Heartgrad is very safe, so if that is the preventative you use, then a second dose will not be harmful. If you use a different medication, check with your veterinarian before giving another dose.

If you missed one dose on the second day, or any doses in the future, never increase the next dose beyond what your vet has indicated on the label. Instead just continue with the next a.m. dosage and so on.

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Ellie should be fine. Missing 3-4 days should not be a critical time period when talking about heartworm prevention. Now missing that dose over longer time periods could potentially cause a problem due to the life cycle of the heartworm and what stages the medicine kills, since the heartworm goes through several larval stages once inside a dog or a cat. The best thing to do in your case is exactly what you did, give the dose as soon as you realize you missed it and of course, contact your vet for their advice. Ellie should be fine. Great question though. I wish you the best of luck with her.

I would wait two weeks, then apply the new dose onto Wellington. Even if you think you are giving half a dose, it may be more than that, and while Frontline is safe, too much can and does cause problems. It will be safe to give him the correct dose in two weeks. I hope this helps!