A quick Google search reveals on Amazon.com
I've used Frontline and Frontline Plus on several dogs for years, always following the recommended doses. I've never had a problem with fleas or ticks, so I'm guessing that this product works well, but I never suspected that I may be harming my dogs with these pesticides. Recently, my 8 year old Australian Cattle Dog suffered a severe reaction several hours after applying a treatment of Frontline Plus; he went into a sort of seizure and lost control of his legs and stability, and bounced off a wall for a minute or so until it passed. I just knew immediately it was a neurological effect from the Frontline Plus, even though none of my dogs had ever had any problems with this product before. I did a lot of research online and was saddened to learn that these types of topical pesticides have been causing problems in dogs and cats - and possibly humans! - for years and that the EPA is investigating the safety of these products. Fortunately my dog appears to be fine now, but obviously I will never use these products again, and I'm saddened to know that I may have unknowingly caused my dog harm. I don't expect to see this published, but I hope that it is so that others may make more informed choices before applying these chemicals to their beloved pets. I have found that there is a holistic approach to controlling fleas and ticks with natural products that will not harm your pet