Ammonia and smelling salts have long been used as a stimulant by NFL players as well as other athletes, though the risks that come with their use have been noted. Many boxing competitions, for instance, have banned smelling salts under the pretense that their use can mask serious injury.

NFL players will be allowed to use “smelling salts” during games after all. The NFLPA sent a memo to players on Wednesday saying that the ban that the league informed teams about on Tuesday only prohibits team employees from distributing smelling salts and any other ammonia inhalant during pregame activities,