Hi Louise,
Hydrodocone is just simply the base, main ingredient in all of these things: Vicodin 5/500; Lorcet 10/650; Norco 10/325; Lortab 10/500; Vicodin HP 10/500, etc... there are a few more too. They're all just varied brand name types. Whatever of these the doc gives you, if the pharmacy gives you generic (which you should request if you've got half a brain

, because there's no difference in quality), the bottle's going to say Hydrocodone "# of mgs"/ Apap (tylenol) # of mgs". It just depends on the amount or strength you get per pill, combined with how much tylenol in each dose (ultimately, the best combination you can have is 10/325... it's max dose of hydrocodone in one pill (I don't think there's a 15) and it's the least amount of tylenol - good for the liver

. That is, just talking about the opioid/tylenol combinations, of course there's quite a few tylenol free relievers out there too. Hope this helps