Sentinel heartworm med contains lufrenon...it makes the fleas sterile, so they cannot reproduce. It will not ELIMINATE the fleas, just stop it from being an issue. I had used that for MANY years without incident. It is very pricey...100$ a month for my 4 dogs. But if you add up the cost of Frontline and the expense of heartworm meds, it comes out to be just a bit more. Dawn Dawn Restuccia, Pres. Last Hope, Safe Haven Donations may be made to: Paypal via windwych@xxxxxxxxx --- On Sun, 5/24/09, Peggy <pmick12@xxxxxxxxxxx> wrote: From: Peggy <pmick12@xxxxxxxxxxx> Subject: [ SHOWGSD-L ] WARNING on flea and tick products........ To: Showgsd-l@xxxxxxxxxxxxx Date: Sunday, May 24, 2009, 10:59 AM The information in this video is IMPORTANT PLEASE watch it -- using any of these products could kill your pet........... Please take a minute to watch this video and pass it on - it may save an animal's life!! http://www.youtube.com/watch?v=w_uqBjvy7YI Peggy ===========================================================================POST is Copyrighted 2008. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ =========================================================================== ============================================================================ POST is Copyrighted 2008. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================