Lutfi's Lawyer Says Britney Spears Used Amphetamines

Sam's lawyer, Joseph Schleimer, admitted in opening statements ... Sam used Adderall (an amphetamine) for ADD, but he was adamant, Sam never gave her the drug.

And Schleimer claimed, Sam repeatedly told Britney she needed to get off drugs, to no avail. Schleimer says Sam wanted to bring a new team in -- he called it "the varsity team" -- to help save her.