My 110lb dog got wrong Frontline dose. Can I give 1.5 doses for fleas?

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!

I wouldn't recommend using it on Sunny since she weighs less than the dose range. While dogs aren't as sensitive to flea treatment overdose as cats are, the potential is still there to cause toxic symptoms such as muscle twitches and loss of coordination. It's best to strictly follow the weight guidelines to prevent any toxicity from occurring. I would exchange the Frontline for a dose in her weight range.

Ideally, you should return the product and exchange it for the appropriate size based on your dog's current weight. Manufacturer's packaging protects the product from 2 important things: light and air. Drugs and insecticides can be destroyed and rendered ineffective if mishandled. Keep in the syringe, expel all bubbles, and store in a cool, dark place. Refrigeration is ideal, but under the sink or other ‘chemical repository’ is ok. Airtight tupperware is best as some of these insecticides are volatile. [Revolution](https://www.petcoach.co/pet-medication/selamectin) is very volatile and must be stored chilled once packaging is breached. Do not freeze. [Frontline Plus](https://www.petcoach.co/pet-medication/frontline) (Fipronil & (s)-methoprene), use the following guidelines: The dose is 0.0305ml/pound. Multiply 0.0305 times your pet’s weight for dose (package instructions) Dogs 11-22 pounds - 0.67ml 0.6ml for 20lbs 0.75 for 25lbs Dogs 23-44 pounds - 1.34ml 0.9ml for 30lbs 1.5 for 50 lbs Dogs 45-88 pounds - 2.68ml 1.8ml for 60lbs 2.68 for 88lbs Dogs 89-132 pounds - 4.0ml 2.7ml for 90lbs 4.0 for 133lbs

Fortunately Frontline does not cause any symptoms of toxicity at 5 times the normal dose, so a double dose would not be a problem. I'm not entirely sure why there wouldn't be enough Frontline in a tube however unless it was open - perhaps you had some tubes that were for a smaller dog (the tube size is the same for different doses but there is less medication for smaller dogs). If the tube was open it may not be as effective and you may want to consider adding a different preventative. If you are not 100% sure you have the right dose size the safest thing to do would probably be to wash it off.

Hi there. If Frontline is not working for your dog (which is sadly very common, in my experience), I would recommend using a different medication rather than reapplying a second dose. I normally recommend Nexgard, Bravecto, Simparica, or Credelio for fleas and ticks - all of these medications are safe and effective, and would be fine to give even if you applied Frontline 10 days ago.

It is safe to reapply the Frontline now, but in my experience, it doesn't have great flea protection. You may have better luck with Advantage products or a Seresto collar. The best flea protection is the prescription oral flea preventatives, like Bravecto or Nexgard.

Frontline doesn't always work unfortunately, but a flea shampoo is not likely to give you a better result. Instead I recommend using Advantage or Advocate spot on, Alternatively a comfortis tablet will do an excellent job as well. Do not bath her at least 3 days before and after you apply any spot on. As these flea treatment do not contain the same active ingredients as the frontline, they are safe to use at anytime you chose.