They do have hydro without APAP its called tusinex. But if you take the APAP out itís no longer a schedule 3 but schedule 2.

Also the biggest seller is the 10/325 and they have generic for every variation of strength, the only time a med doesnít have a generic is when the manufacture still holds the patent (generally 10 years)

Now as for expired meds, its possible but unlikely, hydrocodone is one of the fastest selling drugs in the US, and there are all kinds of FDA regulations on preserving the quality of medications. All though you may have an argument with the heat in south Florida angle, if your meds are coming from there.