It is not - these things are very hard to regulate. Secondly, (
and please someone prove me wrong as i hope that I am) I have never heard of
diazepam coming in capsule form - all that I have ever seen or heard of is in a tablet of some sort.
Why did you not just get this from a doctor? Sure doctors are a little expensive to see if you have no money; however, the prescription itself is not that expensive at all.