Smith was pulled over on a traffic stop and a Florida Highway Patrol officer said he smelled marijuana in the car. The officer searched the car and found crack cocaine, marijuana and a business card with powder cocaine residue in the car's center console, authorities said.
"I realize that I cannot be the husband, father, son and citizen I want to be until I overcome my addiction," Smith said in a statement released by Premier Sports & Entertainment. "It is my highest priority, and will be the toughest challenge of my life, but I am going to get the help that I need to achieve a complete recovery."
The statement did not specify Smith's addiction and Amy Palcic of Premier Sports & Entertainment refused to discuss his treatment.
Smith, who played 10 seasons for Jacksonville, was pulled over on Interstate 95 in Jacksonville for excessive window tint on his 2009 Mercedes Benz.
Smith was charged with possession of crack cocaine, marijuana and drug paraphernalia. He is free on $11,500 bond. His arraignment is May 6.
"I am ashamed and humiliated by my actions and I apologize for the embarrassment I have caused my family, friends and everyone in the Jacksonville community who have supported me throughout my career," he said in the statement.
Smith was arrested at a DUI checkpoint in August with an open beer and marijuana. He was charged with two misdemeanors and was in the process of trying to get those cases resolved before his latest arrest.
The former Jackson State University star retired from the Jaguars in 2006 after playing from 1995 to 2005. He finished with 862 receptions and 12,287 receiving yards and 67 touchdowns. He was a five-time Pro Bowl selection.