I have 4 months of trifexis for a 60-120 lb. dog (my dog out grew the size). This is the newest prevention against Heartworms and fleas and works great. No messy fluids on the back of the neck anymore. This product WILL NOT kill ticks or prevent them. Asking $70.00 for all 4 or $22 for a single dose. This is the website for elanco / if you'd like to check it first

　　***YOUR DOG MUST BEEN HEARTWORM TESTED AND NEGATIVE***

　　***DO NOT GIVE TO A DOG WHO IS NOT TESTED***