What Are The Best Flea Tablets For Cats?

The best flea tablets for cats are fast acting and reliable.  The problem is finding out which ones work the best.  Word of mouth is good but not always an option.  We have reviewed the flea tablets for cats. By the time you have finished this article you will know which is the best flea tablet to choose for your cat.

Why Use Cat Flea Tablets?

A flea tablet or pill is normally (but not always) a one off treatment that effectively treats a flea infestation and works quickly. This is an option that is commonly used in shelters. They have to get rid of fleas fast. The pill can be given as a once off or daily or as needed and there is one brand that has 30 days coverage.

Some of the tablets referred to below contain a product called nitenpyram. There is more information about nitenpyram and how it works here.

The Best Flea Tablets for Cats


#1. Capstar Flea Tablets - Fast Acting  & Good Value

2. Flea Away Natural Flea Repellent - Natural Option

3. Cat & Dog MD - Can Be Given Daily

4. Comfortis Tablets For Cats And Dogs - Lasts 30 Days

5. Cap Action Oral Flea Treatment For Cats - Positive Reviews


 The Best Cat Flea Tablets Are...

#1 Capstar Flea Tablets

Fast Acting  & Good Value

This is a very fast acting treatment. It starts working within 30 minutes and will kill 90% of fleas on your cat within 6 hours of treatment. When you just need those fleas gone these flea pills are very effective.

It is a one off treatment that can be used as often as needed.  It is safe to use once per day, with or without food. It is often used in shelters to combat flea infestations.  

Be aware that this is not a treatment that lasts for 30 days.  You can repeat as necessary or you may choose to use this product in conjunction with other flea medicine. 

There are 6 tables in this pack suitable for cats from 2 lbs to 25 lbs.

For best results treat all infected animals in your household so that re infestation doesn't take place. 

This medication is in the form of a tablet.  Either crush the tablet and add to your cat's food or use a pill popper.

Read these instructions explaining how to give your cat a tablet using a pill popper.

Cats can be finicky about taking tablets and will often not eat food that contains crushed up medication. Oh yeah.  It takes some creative thinking.

If you are giving your cat medication orally a pill popper is the easiest option. Definitely!

Can Capstar be used on dogs and cats?

Capstar is now available in three packages: Capstar for Large Dogs, Capstar for Small Dogs and Capstar for Cats. You may administer Capstar for Small Dogs (11.4 mg) or Capstar for Cats (11.4 mg) to dogs, puppies, cats and kittens 4 weeks of age or older and between 2 and 25 pounds of body weight. Capstar tablets should be administered according to the dosing schedule on the label. Weigh your pet prior to administration to ensure proper dosing. Do not give Capstar for Large Dogs (57.0 mg) to cats, or dogs with less than 25 pounds of body weight.
5 of 5 Stars

2. Flea Away Natural Flea Repellent 

Natural Option

Flea Away is an natural option. It is a vitamin complex made to FDA human standards. The ingredients are listed below.

Proprietary blend of (Brewer's Yeast, Calcium Carbonate, Cyanocobalamin, Folic Acid, Niacin, Pyridoxine HCl, Thiamine HCl, dl-alpha-tocopheryl acetate) 512 mg

Inactive ingredients Beef Liver, Gelatin, Gelatin Hydrolysate Beef, Magnesium Stearate, Microcrystalline Cellulose, Silica, Stearic Acid

It will take approximately 30 days for your cat to build up resistance to fleas. In the meantime you may want to give your cat a shampoo to get rid of fleas or use a different natural option of flea control. For example, using diatomaceous earth. The tablet is quite large so definitely with a cat I would suggest reading this article about how to use a pill popper.

It works by repelling fleas once your pet has built up resistance.

It is sourced and manufactured in the USA.

4.5 of 5 Stars

3. Cat & Dog MD Maximum Defense Nitenpyram Flea Treatment

Can Be Given Daily

This product begins to work in approximately 30 minutes. It is not a long lasting treatment but can be given daily if necessary. 

Remember to treat for fleas, the cats bedding and other places that the cat calls home at the same time.  You may want to use a flea bomb or flea spray or diatomaceous earth to treat other areas around the home. The main aim here it to avoid kitty getting reinfested with fleas.

It may take several attempts to totally get rid of the fleas. The tablet can be given daily however whether it is needed daily is highly dependent on your situation, where you live and so on.

Some experimentation may be needed to find a solution that works best for you.

4 of 5 Stars

4. Comfortis Chewable Flea Tablets For Cats and Dogs

Lasts 30 Days

Four essential things to know about Comfortis. 

1. It is prescription only

2. It is chew-able

3. It is a once per month treatment

4. Cats must be 14 weeks or older to use this medication.

Comfortis is a prescription medication.  It can be obtained online through Petco. You will be asked for prescription details when ordering.  This is an excellent service for those needing pet prescriptions.

It is suitable for cats and dogs and only needs to be given once per month.

cat flea tablets

Suitable for Cats and Dogs

Note that there are different doses for different size cats so make sure that you have the correct tablet for the weight of your cat.

The active ingredient is Spinosad. If you suspect that your cat is pregnant please consult your vet before using this medication.

Efficiency wise it has an outstanding reputation with fleas being killed within 30 minutes and 98% of fleas killed on cats in a four hour period.  This was in a controlled situation.

It works by killing fleas before they lay eggs. If you see fleas on your cat within the monthly time frame that Comfortis gives for protection they will most likely be new fleas.  Continued use of this medication ensures that new infestations will be prevented.

Flea and Tick Activity Map


Click on this link for more information regarding pets with allergies, side effects, how to administer and dosage

4.5 of 5 Stars

5. Cap Action Oral Flea Treatment For Cats

Positive Reviews


It takes around 30 minutes for this treatment to start working and in 6 hours it will have achieved 90% flea control.

It is a one dose treatment but it can be given daily if required. The actual dose lasts for 24 hours so once again this is to clear a flea infestation quickly.  Then you can decide if you want to use a different treatment going forward or stick with the daily dose.  As there are 6 tablets in the pack it does make sense to use the pack.

This product has had very good reviews.  The only reason it has 3.5 stars is that it is not as well known as the other products.  The ratings do speak for themselves so do consider this product.

3.5 of 5 Stars

Our Recommendation is...

#1. Capstar Flea Tablets For Cats

These tablets are top notch when you need to get rid of fleas fast.  This is exactly what they are designed to do and they deliver.  

They are frequently used in shelters to contain flea infestations. 

They don't last 30 days but can be given to the cat daily for ongoing protection or until the flea infestation is controlled.

The tablet starts working within 30 minutes and will kill 90% of fleas on your cat within 6 hours of treatment.

If you are looking for a longer lasting treatment, Comfortis gives protection for 30 days and also begins working quickly. Comfortis is prescription medication which Petco pharmacy can dispense for you with a prescription.

Overall rating :  5 / 5

The Best Flea Tablets for Cats


#1. Capstar Flea Tablets - Fast Acting  & Good Value

2. Flea Away Natural Flea Repellent - Natural Option

3. Cat & Dog MD - Can Be Given Daily

4. Comfortis Tablets For Cats And Dogs - Lasts 30 Days

5. Cap Action Oral Flea Treatment For Cats - Positive Reviews


How To Get The Cat To Take A Cat Flea Tablet?

Some cats, I use the word 'some' sparingly, will eat a pill that has been crushed and added to their food. Mostly however cats don't tolerate this sort of behavior from us and will leave the food untouched.

It can be frustrating as we know we are doing what is best for kitty but kitty has other ideas and being obedient isn't one of them. Fortunately there are other ways of giving the cat a tablet.

  1. Using a pill popper or pill shooter is a popular and convenient way to give a cat a tablet.  It may take some getting used to however it is worth persisting as life will become easier when ever kitty needs to take a pill. There is detailed information and video here about how to use a pill popper.

  2. Another excellent option is to use a gel capsule. The capsules are purchased empty and the pill is then be added to the capsule - either whole or crushed. Approximately 200 capsules are in the bottle.  This is in preference to purchasing 1000 gel caps (way too many) in a plastic bag. This person describes how they used these gel caps successfully with their cat. The capsules are also very small, just the right size for cat.  

    Next the capsule can be put into the pill popper or added to a wrapper also called a pill pocket.

  3. If you already give your cat L-Lysine try crushing the pill between two teaspoons and mix with VetriScience Laboratories Vetri-Lysine

FAQ Cat Flea Tablets

How long do cat flea tablets last?

Pills containing nitenpyram start to work almost immediately, within 30 minutes. The nitenpyram leaves the cat's body in approximately 24 hours and with that the protection from fleas also disappears.

It is recommended to give the tablet regularly for ongoing relief from fleas. Pills containing Spinosad kill fleas for approximately one month. Be sure to read the label and the instructions for administering before purchase.

Are There Side Effects From Cat Flea Tablets?

Side effects can include hyperactivity or lethargy, excessive panting, itching, vomiting, nervousness, diarrhea, seizures, and trembling. Other side effects that cats may exhibit include pupil dilation, increased heart rate, vocalization, fever, and salivation.

Both cats and dogs may also experience an allergic reaction to the treatment that is characterized by hives, difficulty breathing, and swelling of the lips or tongue.

There is more information about Capstar here and Comfortis here.

Can I Give My Pregnant Cat Flea Tablets?

Pregnant cats can be given medication that contains Nitenpyram. Comfortis contains a different medication called Spinosad.  Consult with your vet before giving Comfortis to a pregnant cat.

More Flea Treatment Options

Would A Flea Collar Be A Good Option For Your Cat?

A flea collar for your cat can last up to 8 months. If  there is an ongoing flea problem or you just want to set and pretty well forget,  this could be a good option in your household.

Flea Drops Are Efficient For Treating Fleas On Cats

For easy and convenient application, you hands down can’t beat the cat flea drops that are applied once per month. 

Diatomaceous Earth For Fleas

What is diatomaceous earth and how do you use it to control fleas? Excellent choice if you have a yard or outdoor area that also needs to be treated for fleas.

best flea tablet for cats

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