These articles link the perennial Superbowl powers, the 70s Steelers to use of anabolics like this story.
Former coach Jim Haslett (from the Post-Gazette.com story):
Haslett admitted to using performance-enhancing drugs when he played and estimated that 50 percent of the NFL players in the 1980s -- including all of the linemen -- were users. He also said he believed the rampant use of steroids started with the Steelers of the 1970s, a contention that instantly made him something of a pariah in his hometown. The backlash was so sudden and so acute that Haslett felt the need to apologize the next day for mentioning the Steelers.
Or as quoted (same article) from Steve Furness's book:
Courson exonerated the Steelers' defensive linemen -- "In those days, few defensive linemen did [steroids]," he wrote -- which is why L.C. Greenwood could go on a national radio show the other day and say, with good conscience, that Haslett's assertion was the damnedest thing he ever heard.
But Courson wrote that 75 percent of the Steelers' offensive linemen took steroids at one time or another and would sit around as a group discussing their usage the way other men might discuss their wife or girlfriend, a night at the bar or a good hunting trip.
"Disgruntled players throughout the league called us the 'Steroid Team,' as if performance-enhancing drugs were the sole reason for our success," Courson wrote, adding how maniacal the Steelers' linemen were in the weight room.
An old story documents how former Steeler Terry Long tried to kill himself with rat poison after testing positive for 'roids in 1991, found here.
Ouch. All these issues does make one wonder...