Permethrin 10% for Animal Use - Drugs.com Have product container or label with you when calling a poison control center, doctor, or going in for treatment. For 24-hour emergency information on this product, call 1-800-498-5743 (US & Canada) or 1-651-523-0318 (all other areas) Directions For Use It is a violation of Federal law to use this product in a manner inconsistent with its labeling.