Does the symbol look like any one of these?
http://www.drugid.info/cgi-bin/pill-identification.cgi
1) Select "Click to see if we have your pill"
2) Now select imprint on tablet.
This is a pretty good list of logos for American pills. If your pill is not on here, please identify where the pill originated from and a possible description, or you can draw or scan it and e-mail it to me. See my profile.
I might not always be right, but I'm never wrong.