Buy Lortab Online Without Prescription. Lortab contains a combination of acetaminophen and hydrocodone. Hydrocodone is an opioid pain medication. An opioid is sometimes called a narcotic. Acetaminophen is a less potent pain reliever that increases the effects of hydrocodone. When combined, hydrocodone and acetaminophen form a painkiller used to relieve moderate to severe pain. Hydrocodone is synthetic codeine; acetaminophen is commonly known by the trade name Lortab.