Hydrocodone bitartrate is an opioid analgestic commonly known by its trade name Vicodin. It is prescription only comming in 5/7.5/10mg tablets with 500/750/660mg acetaminophen (Tylenol) or in some cases ibuprofen.
The street price would depend on your location and also keep in mind that multiple pills are needed to get you high. Personally I would need 50mg for a good buzz (30 should be okay for your first time) and it wouldnt be worth it unless the price per pill was only a couple dollars.