Fleas are one of the most common parasites that affect dogs. These blood-sucking insects can cause severe itching, hair loss, and even infections in your pet. If you often take your dog to parks or other places that are known to be infested with fleas, then it is likely that your dog will be exposed to them at some point.
Fortunately, there are many products available for treating fleas on dogs such as Simparica. This medication is considered to be one of the best options for preventing flea infestations since it kills adult fleas and prevents eggs from hatching. However, it should not be used as a sole treatment for flea infestations because it does not kill young flea larvae or eggs.
Simparica is a brand-new prescription flea and ticks medication for dogs. It’s the first oral medication that’s been proven to kill fleas, ticks, and chewing lice on your dog.
Simparica is intended for use in dogs 12 weeks of age or older to treat existing flea infestations and prevent new infestations. It can also be used to treat and prevent flea infestations in dogs that are at least 6 months old and have been previously treated with another flea preventive.
Can a Dog Get Fleas While on Flea Medication?
Yes, it is possible for a dog to get fleas while they are on flea medication.
If you have been using flea medication and your dog still has fleas, there are two possible explanations: either the medication you are using is not effective against the type of flea that is infesting your dog or the flea medication has lost its effectiveness and needs to be changed.
If you suspect that your dog has been exposed to an ineffective flea medication and is still getting fleas, talk to your vet about switching over to another form of treatment.
How Long Does It Take Simparica to Kill All Fleas?
Simparica is a monthly flea and tick treatment for dogs. It’s effective against Flea Allergy Dermatitis, which can cause itchy skin and hair loss in dogs. The active ingredient in Simparica is sarolaner, which works to kill fleas by binding to their nicotinic acetylcholine receptors.
Killing fleas on your dog takes about 24 hours after administration of the first dose. In clinical trials, 100% of treated dogs were free of live fleas within 24 hours after administration of the first dose (1). This means that if you notice any live fleas on your dog within 24 hours after giving him a dose of Simparica, they are likely not his own.
Does Simparica Protect Against Fleas?
Yes, Simparica protects against fleas. In fact, it’s the only oral flea preventative that can be used in dogs at all. Other than the oral form of treatment, you have to buy a topical medication or use a shampoo.
The reason Simparica works so well against fleas is that it contains the ingredient moxidectin, which has been shown to kill adult fleas and prevent their eggs from hatching. This makes it one of the most effective flea treatments available today.
How Long Does Simparica Stay in a Dog’s System?
Simparica is a topical medication that will be absorbed through the skin into your dog’s bloodstream. After being absorbed, it will enter their kidneys and liver where it will bind to proteins within these organs and be broken down slowly over time by enzymes in these organs.
It takes about seven days for the majority of this medication’s effects to wear off in most dogs, although some may take longer than others depending on their size or health status (see below).
Top Fleas Killer Products To Buy
Fleas can be a huge problem for your pet. They may cause itching, skin infections, and even anemia in dogs. Fleas also transmit diseases to humans and other pets.
The good news is that there are many different flea control products on the market that can help you get rid of these pesky pests. However, it can be difficult to choose the right product for your pet’s needs. To make things easier for you, we’ve compiled a list of some of our favorite flea control products.

Bayer 4031982B Suspend 16oz, White
Price : $56.81
Features :
- Broad-spectrum control of more than 50 nuisance pests
- Effective knockdown with a long residual
- No odor, no visible residue
- Package Dimensions: 3.1 L x 27.7 H x 18.0 W (centimeters)

Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 8 Months
Price : $63.98
Features :
- Vet-recommended, premium flea & tick protection for dogs & puppies without the price tag
- Long-lasting flea collar kills & repels fleas for 8 continuous months
- Seresto is the #1 selling non-prescription flea & tick brand, stocked by 8,000 vet clinics (Elanco Animal Health, data on file)
- Starts working within 24 hours to kill & repel fleas by contact so pests don’t have to bite your dog to die
- Hassle-free, non-greasy, easy-to-use flea & tick protection

Flea and Tick Prevention for Dogs, Flea Collar for Dogs, Natural Dog Flea Collar, 1 Size Fits All, 25 inch, 8 Month Protection – 3 Pack
Price: $46.88
Features:
- Protection for 8 month – flea and tick collar for dogs protect your pet or puppy from flea and ticks 24h 7 days a week during 8 months.
- More powerful – new formula. More effective flea and tick prevention for dogs than other collars and still hypoallergenic for you and your pet.
- Age for using – you can start use collar from 3 month age of your pet. You can use our collar for small, medium and large dogs.
- Waterproof – continues to be effective after bathing and playing in the rain.
- Charity – with every sold collar we donate to organizations that are engaged in saving animals. Help us to give them hope!
In Conclusion,
While the Simparica flea and tick preventative is an excellent choice for protecting your dog from fleas, it can only protect against fleas for about 30 days. This means that if you are treating your dog with Simparica and then go on vacation, you will need to use another form of flea treatment to prevent your pet from getting bitten by a flea in the time between doses.
In addition, there is a good chance that your dog will still be exposed to other ticks while taking this medication, which means that you should also be treating them with a tick preventive (and making sure they do not come into contact with any wild animals).