A couple of days ago, Dad gave our dog Dixie a bath and he noticed that she had a few fleas (for the first time ever).
He put some Sergeants brand Flea and Tick repellent on the back of her neck; carefully following the box instructions.
Shortly after applying the medicine, we noticed that she seemed very upset and would do things like bite at nothing and was very restless. We thought that it was just the fleas bothering her.
Later that day,  she became frantic; running into the furniture, yelping, muscle spasms and just acting really distressed.
Dad felt badly for her and decided that maybe it was the medicine and not the fleas that were bothering her, so he gave her another bath.
She calmed down for a few hours, but was still not herself.
About 11 that night all of the above “symptoms” returned.
Dad called a 24 hour vet (that is an hour away), to see if they had any recommendation.
The vet instantly recognized the problem, saying that this common problem when people put Sergeants Flea killer on their pets. In fact, she said an hour before Dad called, another person had called her with the same problem!
The vet said all you can do is wash the dog (cats can have reaction to this product as well) with Dawn dish detergent and give the animal baby asprin.
So, Owen bathed Dixie in the Dawn at about midnight and gave her some asprin.  None of that helped too much though; the symptoms were still there. About 2 am, she curled up in Ariel’s lap begging to be held and petted.  :(
After about an hour, she fell asleep on Ariel.
Dixie started throwing up (not on Ariel…) about 6 am. After that she spent the rest of the day sleeping.
She seems to be getting better.

While all this was going on, Mom did a google search on the effects of Sergeants Flea and Tick products, and was shocked to find hundreds (if not thousands) of people who have used this product and their pets had similar reactions like Dixie did.  A lot of people’s pets suffered even more than Dixie. Apparently, many animals have DIED from being treated with this product or have permenant problems (retardation, spasms, etc).
We are so thankful that Dixie seems to be on the mend!
We just thought we’d warn others about this awful product!
Here is a link to just one site full of similar horror stories.