BUFFALO, N.Y. — U.S. authorities have charged a Canadian doctor with unlawfully treating professional football players with unapproved drugs, including human growth hormone.

Dr. Anthony Galea, of Toronto, is named in a federal criminal complaint filed Tuesday in Buffalo.

The complaint charges the doctor with lying to federal officials, smuggling, unlawful distribution of HGH, introducing the unapproved drug actovegin into interstate commerce and conspiracy to defraud the United States.

According to court documents, Galea's clients include at least three National Football League players. One allegedly had two HGH kits delivered to his home while another received actovegin injections.

Galea also treated major league baseball players and pro golfers, but the charges pertain to the NFL players. No athletes were named.

Galea's lawyer was in court and not immediately available to comment.