Are There Any Side Effects to Using Capstar?

Fleas are complete trouble for any pet and its owner; so it’s really important to find a viable flea treatment that works instantly. There is a wide range of flea medicines and preventives out there for pets; so it may very well be hard to find the perfect treatment for your pet. Families with cats and dogs can face other difficulties in finding a treatments sensitive for cats yet sufficiently able to eradicate infestations in dogs.

You adore your pets; making sure they’re protected from fleas and ticks. Walking into your nearby pet store and checking every one of those flea tablets for cats and dogs accessible over the counter can be quite scary. One treatment that attempts to kill fleas on both cats and dogs is Capstar Flea Control. This treatment is accessible in repeated formulations to treat all dogs and cats that are one month of age, and their weight should not be less than 2 pounds. We’re going to take a look at Capstar tablets to check whether it might be the item that you’re searching for. Before the end of this article, you’ll get to know the possible side effects that Capstar tablets have for your dogs and cats.

Drug Description:

Capstar is used to kill adult flea infestations on your pet. It acts really quick and also works on the adult fleas’ nervous system within 30 minutes; killing them all within 4-6 hours. Capstar is valuable in case of kenneling, pet shows and traveling. It can likewise be utilized as a preventive medicine to give complete protection against fleas. Capstar doesn’t act on young fleas, eggs, or larvae, as they don’t take a blood meal.

Active Ingredient in Capstar:

Capstar contains an ingredient known as nitenpyram, it is utilized to kill adult fleas on cats and dogs. In case you’re searching for a fast and abrupt fix to those annoying flea issues then Capstar is the best solution for you and your pet.

Nitenpyram, as it is present in Capstar flea control pills is white to yellow in color. Capstar isn’t exactly scentless; in any case, the smell is gentle and not at all poisonous. Nitenpyram is non-flammable, non-destructive and non-explosive; anyway, it is yet easily burnable. Capstar flea control pills are insoluble in water, implying that they won’t break down to form a homogenous solution. Nitenpyram is chemically stable under normal conditions of storage.

How does it work?

Capstar flea control pills get totally absorbed in the cats or dogs intestinal tract after the dose. Little is lost to the dung. Following oral dosing, drug levels will immensely reach in the animal’s blood after around 40 minutes in cats and 80 minutes in dogs.

After your pet takes the Capstar tablet, the Nitenpyram is immersed into the bloodstream very quickly. The minute a flea takes a blood meal from your pet, they ingest enough of the drug to kill them.

Nitenpyram is a neonicotinoid, which means it is similar to pesticide nicotine. It acts on the flea central nervous system by fastening to acetylcholine receptors. Acetylcholine is a vital neurotransmitter, and a barrier of the receptor interferes with the passage of nerve signals and leads to the eradication of the fleas’ central nervous system.

How to utilize Capstar flea control pills?

Capstar flea control pills are given to cats and dogs more than about a month of age when the animal’s weight becomes more than 2 lb. Cats and dogs are dosed with Capstar flea drug at a dosage of 1mg/kg orally. A 25-pound dog is roughly 11.4kg and gets an 11.4mg dose of Capstar.

CAPSTAR for cats and little dogs- each Capstar flea pill contains 11.4 mg of nitenpyram for animals 2-25 pounds (0.9-11.36kg) in weight.

CAPSTAR for adult dogs – each Capstar flea pill contains 57.0 mg of nitenpyram for dogs 25.1-125 pounds (11.4-56.8kg) in weight.

The Capstar flea control pills are accessible in packs of 6. Capstar is given without prescription and can be acquired over the counter.

You should buy tablets that are right according to the weight of your dog or cat. Try not to divide big tablets into two to offer it to puppies. All cats and dogs in the family unit ought to be treated within the same time with Capstar flea control. This is because untreated pets can go about as a storage house for the fleas. Treatment should start whether in late winter or early springs towards the beginning of the flea season. Treatment can begin whenever fleas are seen on your pet.


Capstar is known to cause certain side effects when consumed. While other unfavorable responses might be the consequence of improper utilization. Symptoms may be vary contingent upon which animal is being dealt with; as cats and dogs have distinctive responses to the treatment. The most commonly recognized symptoms that influence dogs to incorporate laziness or hyperactivity, incoordination and trembling or seizures, and anxiety. Dogs may likewise encounter unreasonable panting, itching, and vomiting, inappetence, and looseness of the bowels.

Cats taking Capstar may encounter a significant number of indistinguishable reactions from dogs. Normal symptoms incorporate hyperactivity or laziness, unnecessary panting, itching, heaving, inappetence, anxiety, looseness of the bowels, seizures, and trembling. Few other symptoms that cats may display incorporate pupil dilation, increased pulse, vocalization, fever, and salvation. Both the cats and the dogs may likewise encounter an unfavorably allergic response to the treatment that is characterized by hives, trouble breathing, and swelling of the lips or tongue. There is likewise a risk that combining Capstar with different prescriptions and medicines may heads-up other antagonistic impacts.

Take Precaution

It is really important to mention that, even though this ‘side effects’ area mentions many frightful aggressive reactions that may be linked to Capstar flea medicine, in actuality, such reactions are exceedingly uncommon. I have never personally observed a reaction from Capstar and have utilized a great deal of it. The main reaction I have ordinarily observed is the disturbance and itching reaction. Taking a look at the dose range for Capstar pills should give you an idea of the medication’s safety. An entire 11.4mg tablet will be enough for animal weighing between 1kg to 11.36kg. The 1kg animal is getting a dose that is 11.4 x that of the 11.36kg animal but then it isn’t harmful. It demonstrates that Capstar flea drug has an outgoing safety range.

Be vigilant readers! Pets will frequently hint about a disturbance for up to 7 hours after Capstar treatment is given. This specific and regular type of disturbance is described by such signs; scratching, biting the fur, licking the fur and skin twitching. Vocalization, hyperactivity and panting may likewise be seen. This type of response isn’t commonly a consequence of the medication, yet a reaction to the quick demise of fleas. The fleas become momentarily ‘energized’ and begin to twitch as the Nitenpyram poison sets in; making peculiar, conceivably sensitive sensations against the cat or dog’s skin. A recent report in the Journal of Medical Entomology affirms and depicts these responses. It can increase in “scratching, panting, licking and twitching” symptoms in the first 5 hours after Capstar ingestion; with panting and licking proceeding to 7 hours after the medication was first dosed.

Capstar Pros & Cons


Safe to use on cats, pups, kittens and dogs over a month of age and more than 2 lbs.

Generally good for use on pregnant or lactating pets.

Has an immediate impact. It tends to be given once every day and will kill fleas within half an hour.

Is a less expensive option in contrast to other tablet flea medicines.


Should be given every day to counteract and kill fleas.

Just reacts and kills grown-up fleas. It won’t act on larvae or eggs.

Unflavored, so it might be conceivable that your puppy won’t take it eagerly.

How to Store It?

Keep in a sealed bundle at room temperature.

Missed Dose?

If you miss a dose or are uncertain the dose was given, a second pill might be given safely.

In A Nutshell:

This is an excellent treatment to use to get the fleas off from your pet. However, won’t give best results because it’s only effective for 24 hours and just kills live fleas; in contrast to few of the drops and tablets. Ensure that you get the correct tablet for your pet; the dosage is contingent upon your pet’s weight and breed. Try not to give dogs tablet to cats and the other way around. You can avail discount by using Entirely Pet discount coupons.

Other than those cautions, we feel that Capstar is a safe, successful, non-prescription method for killing fleas on your dogs.

Author Bio:

Abigail Kent is an enthusiastic writer who loves to write on lifestyle, fashion, money saving, and travel blogs. She’s currently writing for Discount Codez. An online discount coupons and promo code site. She holds a bachelor degree in computer science. She loves reading books and making new friends. Say hello to her on Twitter.

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