Well, they're not saying it was without a Rx, they're saying the Rx was in somebody else's name (and he's saying that it is his Rx but used a pseudonym for privacy reasons...I don't know if that's legal, maybe it is.)
But the fact that he used a pseudonym, it was probably for the Viagra Rx.
WABC radio reporting it was not a pain drug nor something that a person would use to get high.