We're here to help. Every message goes to a real person — no bots, no auto-replies. Expect a personal response within 24 business hours.
Monday – Friday, 9:00 AM – 6:00 PM Eastern Time
Closed weekends and US federal holidays. Emails received outside hours are answered the next business day.
Dynaserv Florida, LLC (dba TickFreePets)
1201 N Orange St, Suite 700
Wilmington, DE 19801
United States
For questions about Seresto® product safety, side effects, or to report an adverse event, contact the manufacturer directly:
Elanco Customer Support
Phone: 1-800-255-6826
Website: elanco.com/en-us/contact-us
Before contacting us, check our FAQ section — most questions are answered there.