https://www.vetnurse.co.uk/f/nonclinical-discussions/14907/effipro Just spoke to my sister and their dog has been changed onto effipro by the vet, put it on the dog yesterday and today she said his fur has gone white?? I have never used or seen this used before and at the mo the website isn;t working for me to get onen-USTelligent Community 10https://www.vetnurse.co.uk/thread/119556?ContentTypeID=1Tue, 06 Sep 2011 00:59:12 GMT1a0763ec-3885-442c-853e-6cef656dfec5:3c0ab85b-f31e-4923-8251-1508929b88a3Kerry Spain<p> This is normal with Effipro. The Effipro leaves a powder like residue once dried where as the likes of Frontline leaves an oily residue.&nbsp; It&#39;s all to do with the composition of the carrier oil/ solution. </p><div style="clear:both;"></div>https://www.vetnurse.co.uk/thread/119547?ContentTypeID=1Mon, 05 Sep 2011 20:58:25 GMT1a0763ec-3885-442c-853e-6cef656dfec5:c2859ff2-0bab-4b13-ad52-a8733c04e56aDippy<p>I&#39;ve been using Effipro for about a year but can&#39;t tell as Henri is blonde anyway. It does stink (although in a kind of &quot;I need to sniff that again&quot; kind of way!) My last practice switched to it some time ago as it&#39;s a fair bit cheaper for clients and i wasn&#39;t aware of anyone reporting that effect so it&#39;s interesting to read.</p><div style="clear:both;"></div>https://www.vetnurse.co.uk/thread/119543?ContentTypeID=1Mon, 05 Sep 2011 20:40:23 GMT1a0763ec-3885-442c-853e-6cef656dfec5:6d4e0b94-4fa3-4e48-9862-f2bc6bab8a27bongo<p>thanks, never heard of it before so just wanted to check</p><div style="clear:both;"></div>https://www.vetnurse.co.uk/thread/119542?ContentTypeID=1Mon, 05 Sep 2011 20:27:45 GMT1a0763ec-3885-442c-853e-6cef656dfec5:bae4df12-2d44-43d2-ad60-a9cb83255708Sal the 1st<p>yes I use effipro on my cats and it can leave a white patch</p><div style="clear:both;"></div>