New thought about the ghoul serum

I've been playing New Vegas again and had a thought about the mysterious vials of serum in the Fallout series.

Could it be possible that it's just Jet? And that it's not some mysterious, lore-defying serum that prevents ghouls from going feral? But rather that Jet and other chem withdrawals expedite the process of becoming a feral ghoul?

In my Fallout builds, I'm constantly stacking chems and having withdrawals, so why would the Ghoul be any different? Lucy would have no way of knowing what Jet is, and is naive to the wasteland in general. Also, that Super-Duper Mart was a known drug lab (and loot cave), so it would have a ton of Jet and other favors.