Selarid Topical Solution for Dogs 40.1–85 lbs (Selamectin )

Monthly Flea, Heartworm, and Tick Protection for Large Dogs

Product Description

Selarid Topical Solution for Dogs 40.1 to 85 lbs is an FDA-approved prescription monthly parasiticide for medium to large breed dogs in this weight range. Once applied to the skin, it works through the body to cover adult flea control, flea egg prevention, heartworm disease prevention, ear mite treatment, sarcoptic mange, and American Dog Tick control. The teal box carton contains six single-dose applicators, giving owners a full six months of broad-spectrum parasite coverage in one purchase.

Benefits

• Heartworm Prevention in Medium-Large Dogs: Prevents heartworm disease in medium to large breed dogs when applied consistently within the recommended monthly interval during mosquito season.
• Comprehensive Flea Control: Takes out adult fleas and shuts down egg development for a full month, steadily reducing the flea burden on your dog and in the home.
• Sarcoptic Mange Treatment and Control: Treats and controls sarcoptic mange in dogs, helping relieve the intense itching and skin discomfort these mites cause over the course of treatment.
• Ear Mite Treatment and Control: Tackles ear mite infestations in dogs as part of the once-monthly topical application, restoring comfort and reducing irritation inside the ear.
• American Dog Tick Control: Controls American Dog Tick infestations in dogs with consistent monthly application helping manage recurring tick exposure throughout the season.

Ingredients

Active Ingredients

Selamectin

How to Use

Selarid Topical Solution for Dogs 40.1 to 85 lbs is a prescription-only medication. A valid veterinarian prescription is required to purchase this product.

Please follow your veterinarian's specific instructions for the dosage and administration of this medication for your dog.

Disclaimer: Dosage and administration of this medication must be determined by a licensed veterinarian. Always consult your veterinarian before administering or adjusting any prescription medication for your pet.

Additional Information

Precautions

• For Dogs Only: This teal-box formulation is intended for dogs only and must not be applied to cats under any circumstances.
• Not for Sick or Debilitated Dogs: Never apply to a dog that is unwell, significantly underweight, or in poor health, as this raises the risk of serious adverse reactions.
• Avoid Broken or Wet Skin: Do not apply to broken or irritated skin or when the coat is wet, as this can disrupt how the product is absorbed through the skin.
• Caution in MDR1-Affected Breeds: Use carefully in Collies, Australian Shepherds, and other breeds that may carry the MDR1 mutation causing heightened sensitivity to this class of medication.
• Flammable Product: The alcohol content in this product makes it a fire risk; open flames, sparks, and heat sources should be kept well clear during and after application.
• Tick Limitation: This product only controls the American Dog Tick; your vet may recommend additional tick prevention if other species are present in your area.

Possible Side Effects

• Hair Loss at Application Site: Short-term hair loss, mild redness, or skin flaking around the application site has been observed in some treated dogs.
• Coat Changes at Application Site: Stiff or clumped hair, discolouration, or a slight powdery residue at the application spot may occur but resolves on its own without intervention.
• Digestive Disturbances: Vomiting, diarrhoea, and reduced appetite have been reported as occasional side effects in dogs following monthly application of this product.
• Serious Neurological Signs: Tremors, muscle spasms, weakness, or incoordination are rare but serious and need immediate emergency veterinary care if they occur.

Storage Information

• Keep Away from Heat: Store this product somewhere consistently cool and away from any heat sources to keep the formula stable between uses.
• Keep in Original Foil Pouch: Store each applicator sealed in its individual foil pouch until the time of monthly application to preserve stability.
• Keep Out of Reach: Always store this medication somewhere secure and out of reach of children and untreated pets.

Note: For generic medications, the product image shown may not reflect the actual item received. Generic medications can vary in size, color, and shape between orders depending on the manufacturer. Additionally, your medication may arrive packaged in a HardyPaw Pharmacy vial.

Shipping & Return

We offer ground, express, and priority delivery; see our shipping policy for details.

For return instructions or product concerns, please refer to our detailed refund policy.

Prescription items are NON-RETURNABLE and NON-REFUNDABLE.

Frequently Asked Questions

Q1: What makes Selarid a good monthly parasite solution for medium to large breed dogs?

Ans: Medium to large breed dogs that spend time outdoors are up against a fair number of parasite risks, and Selarid addresses most of them through a single monthly application. Not having to juggle different products for different parasites makes the routine much easier to maintain consistently. Your vet will confirm whether Selarid suits your dog's specific lifestyle and exposure level.

Q2: How does selamectin in Selarid prevent heartworm disease in medium-large dogs?

Ans: Once absorbed through the skin, selamectin reaches concentrations in the bloodstream that stop heartworm larvae from developing further after a dog has been bitten by an infected mosquito. It does not affect adult worms already present in the body, which is why testing before starting is important. Keeping up with the monthly schedule is what maintains continuous protection throughout the transmission season.

Q3: Should dogs in the 40.1 to 85 lb range be tested for heartworms before starting Selarid?

Ans: A heartworm test before starting any monthly preventive is strongly recommended for all dogs. Selarid prevents new infections from developing but does not clear an existing adult worm burden, so starting without knowing your dog's heartworm status means any active infection would go unmanaged. Your vet will advise on next steps if the test comes back positive before you begin monthly treatment.

Q4: Is Selarid safe for large breeds that may carry the MDR1 gene mutation?

Ans: Breeds like Collies and Australian Shepherds that may carry the MDR1 mutation can be more sensitive to macrocyclic lactone medications, which includes selamectin. This does not mean the product cannot be used, but it does mean your vet should be aware of the breed and any genetic testing results before starting treatment. Extra caution and monitoring are typically recommended in these cases.

Q5: What should I do if my large dog misses a monthly dose of Selarid?

Ans: Apply the missed dose as soon as you notice and get back onto the regular monthly schedule from that point. Missing a dose during peak mosquito season is worth mentioning to your vet, since any break in coverage creates a window where heartworm transmission becomes a real risk. Staying consistent with the monthly routine is the most reliable way to keep your dog protected year-round.

Clinical Research

Selamectin - Veterinary Partner (VIN)

FDA Selamectin Approval Information

Heartworm Society - Heartworm Basics

CDC - Parasites - Fleas