Protecting Cats and Dogs from Fleas, Ticks, and Heartworms: Pet Parasite Prevention in Aurora and Commerce City, CO

Parasites can cause more than itching and irritation. Denver Metro Animal Hospital and Urgent Care provides cat and dog flea, tick, and heartworm prevention for pets in Aurora and Commerce City, CO, with recommendations based on your pet’s age, lifestyle, health history, and risk of exposure.

Our team can help you choose a preventive plan that fits your pet and explain how often it should be given. The goal is to make parasite protection simple, consistent, and easy to keep on schedule throughout the year.

Need help determining which parasite preventive will suit your pet? Contact our team for guidance.

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Beagle sitting on a rug scratching its chin

Why Is Year-Round Parasite Prevention Important?

Fleas, ticks, and mosquitoes can transmit disease to pets and people alike throughout the year, even when the weather changes. Colorado is notorious for huge jumps in temperature, so don’t rely on the winter months to keep parasites at bay.

Additionally, indoor pets can still be exposed through other animals, people, open doors, boarding, travel, or time spent outside. Missing doses can also leave gaps in protection, which is why veterinarians often recommend staying consistent rather than treating parasite prevention as a seasonal task. A year-round plan helps protect your pet before exposure happens instead of waiting until there is already a problem.

What Problems Can Parasites Cause in Dogs and Cats?

Different parasites can affect pets in different ways, and some can lead to serious illness.

  • Fleas

    Fleas can cause itching, skin irritation, allergic reactions, and hair loss. Heavy infestations can also contribute to anemia, especially in small or young pets.

  • Ticks

    Ticks can transmit infectious diseases and may cause irritation or inflammation where they attach.

  • Heartworms

    Heartworms are spread by mosquitoes and can cause serious damage to the heart, lungs, and blood vessels. Heartworm disease can become life-threatening if left untreated.

  • Intestinal Parasites

    Intestinal parasites may also be spread by fleas or picked up from contaminated environments, and can lead to a variety of illnesses ranging in severity.

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Calico cat sitting on the stairs scratching its chin

How Do I Know Which Parasite Preventive My Pet Needs?

The right preventive depends on your pet’s species, age, weight, medical history, and lifestyle.

Your veterinarian may consider factors such as whether your pet:

  • Spends time outdoors

  • Hikes, camps, or travels

  • Lives with other pets

  • Boards or attends daycare

  • Has any medical conditions that may affect product choice

Cats and dogs should never be given the same preventive unless a veterinarian specifically confirms that the product is safe for that species. Some products intended for dogs can be dangerous for cats.

What Side Effects Should I Watch for After Giving a Parasite Preventive?

Most pets tolerate appropriately prescribed flea, tick, and heartworm preventives well, but side effects can happen.

Depending on the product, mild reactions may include:

  • Temporary stomach upset

  • Vomiting or diarrhea

  • Reduced appetite

  • Tiredness

  • Mild skin irritation at the application site

More serious reactions are uncommon, but contact a veterinarian promptly if your pet develops facial swelling, difficulty breathing, severe weakness, repeated vomiting, tremors, seizures, or collapse.

If you notice a reaction after giving a preventive, let our team know which product was used and when it was given. That information can help guide the next step.

Pug Itching Its Face

What Happens if I Miss a Dose?

If you miss a scheduled preventive dose, contact your veterinarian rather than doubling up on your own. The recommendation may depend on how late the dose is, which product your pet takes, and whether additional testing is needed before restarting. This can be especially important with heartworm prevention. Our team can help you get your pet back on schedule safely.

Contact our Aurora or Commerce City team to talk about flea, tick, and heartworm prevention for your pet.

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