One day after it was reported that the NFL banned ammonia inhalants, the league clarified that while teams can no longer supply them, players can supply their own.

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.