Is it safe to use Biflex TC for termite control in my house?
Some searching shows that the active ingredient is called bifenthrin.  It has been banned for use as a pesticide in the EU.

Some more links that you may find helpful:


US National Pesticide Information Center: http://npic.orst.edu/factsheets/biftech.pdf
EU European Food Safety Authority:  http://www.efsa.europa.eu/en/efsajournal/doc/186r.pdf


They have a lot of information, so they should help you decide whether or not it's right for you and your family.