The acute form of hepatitis, generally caused by viral infection, is characterized by constitutional symptoms that are typically self-limiting. Chronic hepatitis presents similarly, but can manifest signs and symptoms specific to liver dysfunction with long-standing inflammation and damage to the organ.
1 Hydromorphone is a minor metabolite of morphine and may be excreted in urine at concentrations up to 2.5% of the morphine concentration. 2  Consequently, the detection of minor amounts of hydromorphone in urine containing high concentrations of codeine should not be interpreted as evidence of hydromorphone use.
Confidence votes 1.2K. hydrocodone is a single chemical compound. It is, in essence, its own active ingredient. However it is almost always combined with acetaminophen (Tylenol), Ibuprofen or aspirin and marketed as Vicodin, Lortab, Lorcet... or prepared as a cough syrup (Tussionex, Polytussin, Endal HC).So to answer the questionin retrospect, the active ingredient in Vicodin, Lortab, Tussionex, and so forth is hydrocodone.xycodone is used for moderate to severe pain.     Common opioids and their conversions:     10 mg of oral hydrocodone = 6.667 of oxycodone = 66.67 mg of codeine= 10   mg of morphine= 2.5 mg of hydromorphone= 3.333 mg of oxymorphone= 0.1   mg of transdermal fentanyl (4 mcg/hour).