Mr. Pettitte told investigators that Mr. Clemens once admitted to him having taken human growth hormone.
McNamee says he injected Clemens with steroids and human growth hormone on Clemens' orders.
Clemens told the House Committee on Oversight and Government Reform that he never used steroids or human growth hormone.
The statistical slam dunks marred by allegations of steroid and human growth hormone use are another story.
So far, only one such version, the Omnitrope human growth hormone from Novartis, has reached the market.
Among the banned drugs supplied, the lawsuit said, are testosterone, human growth hormone and human chorionic gonadotropin.
Mr. BRIAN MCNAMEE (Roger Clemens' Former Personal Trainer): I told the truth about steroids and human growth hormone.
In the 1980s he was working at Genentech to devise a pill version of the company's human growth hormone.
Human growth hormone and human chorionic gonadotrophin are the present drugs in vogue.
The new testing policies will undoubtedly catch a ball player of distinction abusing human growth hormone or synthetic testosterone.
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"I told the truth about steroids and human growth hormone, " McNamee said.
Consider, for example, the decades of production of a human growth hormone for below-average-height children by the National Pituitary Agency.
"Let me be clear: I have never taken steroids or HGH (human growth hormone), " Clemens insisted in his opening statement.
He was asked whether he had taken human growth hormone (HGH) to aid his recovery from reconstructive knee surgery in 2008.
The records, according to the report, detail the selling of banned supplements such as human growth hormone, testosterone and anabolic steroids.
In the Mitchell Report McNamee said he injected Pettite with human growth hormone, now banned in baseball, and Pettite has acknowledged it.
Ms. KATIE COURIC (Host, "60 Minutes"): For the record, have you ever used steroids, human growth hormone, or any other performance-enhancing substance?
The government alleges Mr. Clemens lied when he testified to Congress in 2008 that he never took steroids or human growth hormone.
Athletes are also barred from human growth hormone, which reputably helps with injury recovery, but they have free use of muscle-building creatine.
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As that drug clears final regulatory hurdles, Amylin will begin to help sell Lilly's human growth hormone, allowing it to train sales representatives.
Mr. Clemens stood out for his repeated insistence, including multiple times under oath, that he had never used steroids or human growth hormone.
Last year, a Washington jury found the seven-time Cy Young Award winner not guilty of lying to Congress about steroids and human growth hormone.
These items ranged from empty boxes of Serostin (a human growth hormone) and testosterone, to personal notes from elite track and field athletes thanking Conte.
Elixir focuses on another molecular mechanism linked to aging, one that casts doubt on the fad of taking human growth hormone to keep you young.
That generic versions of high-tech protein drugs such as human growth hormone, insulin, or Amgen 's Epogen are likely to reach the market with any great speed.
So far, only one such version, the Omnitrope human growth hormone from Novartis (nyse: NVS - news - people ), has reached the market.
Pettitte also testified under oath in a deposition and affidavit to a congressional committee that he had used Human Growth Hormone twice in his career (2002, 2004).
Although the anti-drug policy's enacted in '04 and '05 helped out, many players switch to human growth hormone, which does not show up in a urine test.
On Tuesday, he said that in 2000, he gave Mr. Clemens injections of steroids six to 10 times, and injections of human growth hormone 10 to 20 times.
WSJ: Roger Clemens Trainer, Brian McNamee Says He Kept Drug Waste
Some were linked to Human Growth Hormone, others to steroids.
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