I don't remember any watson 540 imprint; all i remember is a yellow and blue capsule; it was called Paris or Parist 400 (perhaps in slang?) But was a legal perscription for pain after amputation and being hit by a car as a pedestrian, and contained 400 mg of metha-quaalude. I want to ask my Dr. for this as even the very strongest oxicontin is not helping me with complications all these years later along with additional problems and he is willing to help but I don't know what to ask for. I just remember that these capsules did the trick for me and although they did make you "numb" like quaaludes do I am not a drug abuser and at this point I would be on my knees thanking God or whomever could help me get some relief from this terrible pain. I am ready to die otherwise. Seriously. Very very seriously. I will take a conversation but I truly want only an answer.