Capstar

[Gina Heitz <brier@oregonsbest.com>]

Copied from another list: 


Subject: Re: Flea control new: Capstar

The active ingredient in Capstar is nitrenpyram. It belongs to the 
nicotinoid family of compounds. Imidacloprid (Advantage) is also a 
nicotinoid, and is closely related. While nicotine is highly toxic and
addictive, the related nicotinoids appear to have have low toxicity to
mammals. Imidacloprid is widely used as an agricultural insecticide and
nitrenpyram is currently being considered for approval as a cotton 
insecticide. It is not yet registered in the US. 
There is some brief information at: 
http://ipmworld.umn.edu/chapters/ware.htm