"I use one before every game," said New York Giants Pro Bowl defensive end Michael Strahan, a 12-year veteran. "I've used them for years, but I think their use is beginning to spread across football. When I first started, not many other players were using them. Now, I would say 70 or 80 percent of the league does."
Strahan said he uses the capsules to clear his sinuses, "but there is no question that you get a high after doing them. It's not like you get the munchies afterwards, but they are a great pick-me-up. They help you get ready for the game."
Many times, the ammonia sniffing is out in the open, in front of fans and media. Strahan said used cartridges often pile up on the sidelines. After several University of Florida games this past season, a Times-Union reporter saw about three dozen ammonia cartridges littering the field near the Gators bench.