1. Introduction
This manual provides essential instructions for the proper use and care of your Seresto Large Dog Flea and Tick Collar. The Seresto collar is designed to provide continuous protection against fleas and ticks for dogs weighing over 18 lbs (8 kg) and aged 7 weeks and older. It works by releasing active ingredients that kill and repel fleas and ticks on contact, preventing infestations for up to eight months.

Image 1.1: Seresto Large Dog Flea and Tick Collar product packaging.
2. Safety Information
Read the entire label before use. This product is for external use on dogs only. Keep out of reach of children and pets. Do not allow children to play with this collar or reflectors.
- Do not contaminate water, food, or feed by storage or disposal.
- Do not use the container for food storage or other purposes.
- Store in the original unopened container in a cool, dry place that is inaccessible to children.
- Dispose of pouch and expired collar in trash. Outer container may be recycled or disposed of in trash.
- For medical emergencies involving HUMANS or ANIMALS, call 1-800-422-9874.

Image 2.1: Back of product packaging detailing storage and disposal instructions.
3. Setup and Application
Follow these steps to correctly apply the Seresto collar to your dog:
- Remove from Packaging: Carefully remove the collar from its packaging.
- Unroll and Prepare: Unroll the collar and remove any small plastic connectors from inside the collar, ensuring no remnants remain.
- Insert and Buckle: Insert the end of the collar through the buckle and loops.
- Adjust Fit: Adjust the collar around your dog's neck until it fits comfortably. Ensure that two fingers can fit snugly beneath the collar and your dog's neck to prevent it from being too tight.
- Trim Excess: Cut off any excess length of the collar beyond approximately one inch past the loops. For growing puppies, leave some additional length for future adjustments.
- Regular Check: Periodically check the collar's fit and adjust if necessary, especially for growing puppies.

Image 3.1: The Seresto Flea and Tick Collar for dogs and puppies.
4. Operating Principles
The Seresto collar releases its active ingredients, Imidacloprid and Flumethrin, in low concentrations onto your dog's skin and coat. These ingredients spread across the skin surface, providing continuous protection.
- Flea Control: Existing fleas are killed within 24 hours after initial application. New fleas are killed within 2 hours, with protection against further flea infestation lasting 8 months. The collar kills and repels fleas on contact, meaning pests do not need to bite your dog to be affected.
- Tick Control: The prevention of infestations with new ticks begins 48 hours after application. After 48 hours, new ticks are repelled and/or killed in as quickly as 6 hours. The collar protects against common ticks such as deer ticks, American dog ticks, brown dog ticks, and Lone Star ticks.
- Lice Control: The collar is also effective against chewing lice.
- Duration: Provides 8 continuous months of protection under normal conditions.

Image 4.1: The Seresto collar begins to kill and repel fleas within 24 hours of application.

Image 4.2: The Seresto collar provides 8 months of continuous flea and tick protection.
5. Maintenance
- Collar Fit: Regularly check the collar's fit, especially on growing puppies, to ensure it remains comfortable and effective. It should not be too tight or too loose.
- Water Resistance: The Seresto collar is water resistant and remains effective after exposure to rain, sunlight, swimming, bathing, and shampoo treatment.
- Bathing Frequency: To maintain the full eight-month duration of effectiveness, dogs should not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to 5 months for flea control and 7 months for tick control.
- Cleaning: If the collar becomes visibly dirty, you may wipe it with a damp cloth.
6. Troubleshooting
- Skin Irritation: While generally well-tolerated, some dogs may experience mild skin irritation at the collar site. If irritation persists or worsens, remove the collar and consult a veterinarian.
- Reduced Efficacy: If you notice a decrease in effectiveness before the 8-month period, particularly with frequent bathing or swimming, consider the reduced duration mentioned in the Maintenance section. Ensure the collar is authentic.
- Authenticity: Be aware of counterfeit products. Ensure your Seresto collar is purchased from authorized sellers to guarantee effectiveness and safety. Ineffective collars can lead to infestations and potential health risks for your pet.
- Collar Detachment: The collar is designed to unlatch if it gets caught on something, which is a safety feature. If it detaches, it can be reattached. This design means it should not be used as a primary collar for leash attachment.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Seresto |
| Model Number | 86030594 |
| ASIN | B00B8CG602 |
| Target Animal | Dogs (Large, over 18 lbs / 8 kg) |
| Minimum Age | 7 weeks and older |
| Protection Duration | Up to 8 months |
| Active Ingredients | Imidacloprid, Flumethrin |
| Water Resistance | Yes |
| Scent | Unscented |
| Material | Plastic |
| Item Weight | 3.84 ounces |
| Product Dimensions | 1.56 x 4.5 x 4.5 inches |
| Manufacturer | Elanco US Inc |
| Country of Origin | Thailand |
8. Warranty and Support
The Seresto Large Dog Flea and Tick Collar is designed to provide 8 months of protection. For specific warranty details or product support, please refer to the information provided on the product packaging or contact Elanco US Inc directly. We are not responsible for misuse or mishandling of the product due to negligence or failure to acknowledge instructional guidelines.
For consumer questions or medical emergencies, please refer to the contact information provided in the Safety Information section (1-800-422-9874).

