Identify a pill for me please! (it have a db on it)?

I just found a pill in my house, and i want to know what it is!

It is a big white pill!
Bright white!
It has the post "db" or "qp" on it, i cant tell.

Please identify this for me!
Answers:
throw it out.
Try to find it here:
http://www.ask.com/bar?q=how+do+i+identi…
http://www.drugs.com/pill_identification…

http://www.webmd.com/pill-identification…

http://www.rxlist.com/pill-identificatio…
call poison control, they will tell you adjectives about it

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