New price low. Amazon has the 6-Month Supply Apex Plus Flea and Tick Prevention for Dogs (all weight options from 5-22lbs up to 89-132lbs) are on sale for $23 - 28% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $15 with free shipping on $35+ or with Prime.