It's not usually recommended to use more than one oral flea medication at the same time. However, Comfortis and Capstar can be combined. Another exception is Sentinel, which doesn't kill adult fleas, so it can be combined individually with either Comfortis or Capstar.Sep 19, 2021
What happens if I give my dog flea medicine too soon?
Common signs of toxicity from flea products containing organophosphates are diarrhea, vomiting, difficulty breathing, small pupils, muscle tremor, weakness or falling over, and drooling. Organophosphate toxicity can be rapidly fatal, depending on the ingredients and dose the pet is exposed to.Aug 17, 2018
Can I reapply flea treatment early advantage?
Yes, if after two weeks the flea preventive you applied isn't working, you can reapply flea treatment early, or switch to another brand.
How often can you put flea treatment on a dog?
Flea sprays are used directly on your dog but must be designed for animals. Never use a household flea spray on your pet. Pet flea sprays kill fleas but may need to be re-applied from as often as every few days to every few weeks.
Can I put 2 flea treatments on my dog?
Never use multiple flea medications on your pet, unless directed to do so by your veterinarian. Fleas can be a very frustrating problem, and some medications may not produce immediate effects.Jul 25, 2016