VCA Veterinary Hospital of Leon Springs

Flea and Tick Control

Even if your pet lives indoors, he or she could still be exposed to fleas and ticks!

Fleas and ticks live in the environment all around us. Even pets that live indoors can become exposed when the parasites are carried in unknowingly on their owners clothing or on another pet. Consistent application of flea and tick prevention can spare you and your pet a headache!

Fleas are one of the most common problems pet owners face, largely because they are so difficult to get rid of. A single female flea is capable of laying as many as 50 eggs in a single day, and can live (and breed!) on your pet for up to 100 days. That means that in that time, one female flea can lay as many as 5,000 eggs! These eggs can be transferred to the secondary environment when your pet lays on the carpet, or curls up in your bed. The eggs can lay dormant for up to 8 months before hatching. This usually means that, once an infestation has begun, exterminating the generations of fleas can be a game of “catch-up”, which is time consuming, expensive and a hassle.

Besides causing pain and discomfort to your pets, fleas and ticks can potentially be carriers of a number of different zoonotic diseases, which are transmittable to humans.

Did you know that fleas are the beginning of a heartworm infection? Fleas can harbor heartworm larvae inside their bodies, which they contract from an infected animal’s bloodstream. When dogs and cats are bothered by fleas, they often bite and scratch at the aggravated sites. Ingesting the fleas carrying the heartworm larvae then infects the host pet with the heartworm as well.

Signs that your pet may have fleas include scratching, red and irritated skin, visible fleas or ‘tiny black dots’ (known as “flea dirt…this is actually the fleas’ droppings).

Thankfully, your veterinarian can prescribe one of several different kinds of flea and tick prevention. When used regularly, these products effectively block against these bothersome parasites.

We have several of these products here at the clinic available for you to discuss with your doctor:

SimpleGuard " SimpleGuard is a topical medication that both repels and kills fleas, ticks and mosquitoes. SimpleGuard must be applied once a month, and is applied in a stripe along the back running from the base of the tail to the nape of the neck " and begins working within 2 hours of application. SimpleGuard is available for dogs and cats.

AcuGuard " AcuGuard is an orally administered chewable tablet which kills and protects against fleas. Active within 30 minutes of application, AcuGuard must be administered monthly and is available for dogs and cats.

Paradyne " Paradyne is a topical medication that kills and prevents fleas, as well as protects against heartworms, hookworms, roundworms and ear mites. Paradyne must be applied monthly, and is available for all cats, and puppies under 5 pounds.

ComboGuard " ComboGuard is an orally administered pill, given monthly, which kills and protects against fleas, as well as prevents heartworms, hookworms, roundworms and whipworms. ComboGuard is available only for dogs.

Together, you and your veterinarian can choose the right prevention for your pet to keep them happy and flea-free!


Specialty Care

Sometimes sick or injured pets need the care of a veterinary medical specialist. When that happens, VCA specialty hospitals work closely with the general practitioner veterinarians who refer cases to us in order to provide seamless veterinary care to your pet. When your pet is facing any kind of serious illness or injury, our specialty referral hospitals will provide the compassionate and expert care your beloved pet needs.

Our goal is to make sure that when you and your pet are in need that you have access to board certified specialists who are up to date on the very latest developments in their field. In our state of the art hospitals, our specialists also have access to the most sophisticated diagnostic and treatment tools and techniques from ultrasonography and endoscopy to CAT scans and even MRI.

As part of the VCA family, we have over 83 specialty hospitals across the US and Canada which provide referral specialty care, so there may be one near you. Our specialized services include: behavior, cardiology, critical care, dentistry, dermatology, integrative medicine, internal medicine, neurology, oncology, ophthalmology, radiology, rehabilitation, reproduction, and surgery.

Find a VCA Specialty Care Animal Hospital near you:


See all VCA Animal Hospitals >


Emergency Care

In case of an emergency during normal business hours (M-F 7:30am - 7:00pm) please call us at 210-698-1043.


Should you have an after-hours emergency, please contact either of these pet emergency hospitals:


Mission Pet Emergency -

Located at: 8202 N Loop 1604 West, San Antonio Texas, 78249

Phone: 210-691-0900


Emergency Pet Center -

Located at: 503 E. Sonterra Blvd., San Antonio Texas, 78258

Phone: 210-404-2873


If you feel that your pet has potentially ingested a toxin, please contact either one of the above listed pet emergency centers, or the pet poison helpline. 

Online at:


For a list of current pet food recall alerts, please visit the American Veterinary Medical Association's website at