Cross-border trips, pets, and Mexico.

Before departure

Discuss the itinerary with your healthcare provider or travel clinic and your veterinarian. Explain whether you will stay with pets, visit rural areas, camp, or spend time around free-roaming dogs. Pack labelled products in their original containers and check carrier and border requirements rather than transferring chemicals into unmarked bottles.

Mexico and the brown dog tick

CDC travel guidance identifies Rocky Mountain spotted fever as an important tick-related concern in Mexico. Brown dog ticks can be associated with dogs and their surroundings. Avoid contact with unfamiliar dogs, use appropriate tick protection, inspect yourself, and keep pets on a veterinarian-directed prevention plan. Seek care promptly for fever, headache, rash, or illness during or after travel, and state where you have been.

Country-specific product checks

This site offers U.S. and Canadian shopping destinations. For Mexico, consult a local veterinarian, pharmacist, or qualified pest professional for products authorized there. We do not assume an Amazon U.S. or Canadian listing is authorized for Mexican use. Product availability, prescribing rules, and labels differ.

Carry a practical travel record

• Pet product name, strength or weight band, and the last treatment date.
• Photos of the full package label and your veterinarian’s contact details.
• Destination and dates, including day trips across a border.
• A fine-tip tweezer kit, flashlight, and a secure specimen container.
• A plan for getting medical or veterinary help if symptoms occur.

After the trip

Continue to record any illness and tell the clinician about travel. Check luggage, outdoor gear, and pets before settling back in. If fleas appear after returning, use the coordinated home-and-pet cleanup guide instead of treating only the place where you first noticed them.