Here's why:
* Drug Interactions: Combining different medications, even if they seem related, can lead to dangerous interactions. Some products may not be safe to use together, or the effectiveness of one might be reduced by the other.
* Dosage: The correct dosage for any medication depends on your dog's weight, age, and health condition. A veterinarian can calculate the right dose to ensure safety and effectiveness.
* Underlying Conditions: Your dog might have underlying health conditions that make certain medications unsafe. A vet can assess this and recommend appropriate treatments.
To get the best advice for your dog, please contact your veterinarian. They can help you choose the safest and most effective flea and tick control options for your furry friend.