A perscription, schedule III, narcotic analgestic (pain killer) containing hydrocodone and acetaminophen (Tylenol). Hydrocodone is actually an opiate, like heroin, that gives an amazing euphoric body high but it's also very addictive (although not nearly as addictive as heroin).
Unlike basketball and football, there is no way of knowing how long a game of volleyball will be. Like the others have already said, whoever wins the first 3 out of 5 sets wins the game. How long that can take can be anywhere from 30 minutes to 2 hours. (I've played in both).
A volleyball court is 60 feet long and 30 feet wide, divided into two 30 30 ft halves, by a 40-inch wide net, placed so that the top of the net is about eight feet above the center of the court. The first team to score 25 points (and be two points ahead) is awarded the set.