Don't have Amazon Prime? Students can get a
free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
If you're not a student, there's also a
free 1-Month Amazon Prime trial available.
You can also earn cash back rewards on Amazon and Whole Foods purchases with the
Amazon Prime Visa credit card. Read our review to see if it’s the right card for you.
12 Comments
Your comment cannot be blank.
Sign up for a Slickdeals account to remove this ad.
Same active ingredient.
Not trolling, asking legitimately. I use Frontline on my dog and this is way cheaper.
Sign up for a Slickdeals account to remove this ad.
I'm sure the active ingredient is the same, but the excipients is probably different. Given that active ingredients make up only <5% of the product most of the time, those "inactive ingredients" make a whole lot of difference.
My theory is that due to the way topical flea meds work (by spreading through the oil on the coat), it needs to have a non-polar carrier. Depending on what they use, it might be something that passes the blood-brain-barrier. Given these pesticides are basically neurotoxins, it can easily cause seizures if the animal is deficient in certain glycoproteins, or if the dose is so high that it overwhelms the transport system initially.
Either way, after that incident, I stopped using Sentry and went some other topical (might be Frontline). Now I don't use topicals at all and just do Seresto. Pretty skeptical at first bc flea collars generally don't work, but this one has been working great so far (other than the 1 fake Ebay one).