Parasite & Flea Prevention for Dogs & Cats in Tucson

Fleas, ticks, and mosquitoes can make life challenging for your pet (and for you). At Spanish Trail Pet Clinic, we’re happy to work with owners to make sure they’re informed about parasite & flea prevention for dogs and cats. We can also provide treatment for already-infected pets. This includes running blood and fecal tests to check for signs of intruders and/or diseases and prescribing year-round preventatives to keep the pests away.

Parasite-Transmitted Diseases

Heartworm Disease

Heartworm disease is one of the most serious parasitic diseases, as it can be fatal if it isn’t treated in time. Mosquitoes carry this disease, which is spread when they take a meal from an infected host and pass heartworm larvae on to another host. When taking their next meal, the mosquito releases the larvae into the host’s bloodstream. These larvae then travel through the body and anchor in the arteries of the heart and lungs. As heartworms mature and accumulate, they block the arteries and thus block blood flow, which can lead to death.

Signs of heartworm disease include:

  • Labored breathing
  • Chronic coughing
  • Weakness
  • Tiring easily
  • Lethargy
Flea Prevention for Dogs in Tucson, AZ


Ehrlichiosis is a tick-borne disease and while there are several strains, the most common is Ehrlichia canis. Dogs can become infected if an infected brown dog tick bites them. Clinical signs of this disease generally occur in three stages: acute, sub-clinical, and chronic. In the first stage, symptoms include:

  • Fever
  • Weight loss
  • Respiratory problems
  • Swollen lymph nodes
  • Bleeding disorders
  • Possible neurological issues

This stage lasts between two to four weeks. If you notice any of these signs in your pet, you should have them examined right away. During the sub-clinical stage, dogs usually do not show any signs of illness, which could result in their owners thinking they’re healthy again and choosing not to pursue treatment. However, if a dog’s infection progresses into clinical Ehrlichiosis, they could experience much more serious symptoms such as:

  • Anemia
  • Lameness
  • Hemorrhaging
  • Neurological problems
  • Limb swelling
  • Bone marrow failure (the dog is unable to manufacture blood cells)
Human Petting Cat

Choose Prevention Over Treatment

Prevention is the best medicine and the best way to keep your pet healthy. Parasitic diseases can be treated if they are caught in time, but they can still leave lasting effects. Additionally, treating these diseases can be costly and put your pet through a lot of stress.

Spanish Trail Pet Clinic is fully equipped to meet your pet’s parasite prevention needs. Our hospital is always fully stocked with quality flea, tick, heartworm, and intestinal worm preventives, and we can show you how to administer them correctly if you need help.

Contact us today at (520) 722-2771 to learn more and discuss the best options for your pet!