Crossroads Animal Hospital

123 Nashua Road
Londonderry, NH 03053

(603)437-1010

www.crossroadsanimal-hospital.com

Flea and Tick Prevention

Fleas and ticks, pesky little things that they are, can be found year-round. Therefore, it is very important to keep your pets protected year-round. This page is dedicated to the different flea and tick preventatives we offer here at the hospital. Check out this video about the deer tick!

Prescription orders can be placed on our online pharmacy and delivered to your house OR you can fill out our Prescription Request form and pick your meds up in 24 business hours (please note our hours). 

Simparica Trio is a 3 in 1 monthly chewable! It's a preventative for heartworm, flea/tick, de-wormer (roundworms and hookworms) in one tasty chew! We strongly recommend heartworm and flea/tick prevention year-round. This is a prescription, so please call ahead for refills. 

Current offers: Zoetis now has a Petcare Rewards program. Check out zoetispetcarerewards.com for their current offers and to sign up! 


Simparica is a monthly chewable flea and tick treatment that is only safe for dogs. It is a liver flavored chew tablet and is available by prescription so please call ahead for a refill. We strongly recommend flea and tick control year-round. 

Current Offers: Zoetis now has a Petcare Rewards program. Check out zoetispetcarerewards.com for their current offers and to sign up! 



Frontline Gold is safe for both dogs and cats. It is a monthly topical flea and tick treatment. You can purchase this right in our hospital, over the counter. We strongly recommend flea and tick control year-round.

Current Offers: If you buy 6 doses, you get 1 dose free. There are also some rebates for combinations: Buy 6 doses of Heartgard and 6 doses of Frontline Gold and receive a $25 rebate. Buy 12 doses of Heartgard and 6 doses of Frontline Gold and receive a $35 rebate. Buy 12 doses of Heartgard and 12 doses of Frontline Gold and receive a $75 mail-in rebate. We will fill out the rebate form in hospital and we will mail it in for you. All doses have to be the same size.


Available on our online pharmacy ONLY: https://crossroadsanimalhospital.vetsfirstchoice.com/


Seresto Collars for cats and dogs is a collar that kills and repels fleas and ticks and is worn for 8 continuous months of protection. This is an over-the-counter product, so you can come in any time to pick it up.

Current offers: While Seresto Collars can be purchased elsewhere, there is a $15 mail-in rebate when purchased here. You will need the rebate form (we will give that to you) as well as the original receipt. There is a number on the Seresto tin that you will also need to write on the rebate form.