from http://thinksteroids.com/news/anabolic-steroid-methyltrienolone-kills-bodybuilders/

“This [methyltrienolone] is a very old drug and no one has tested positive for it in the past.

It is on the banned drugs list. But because it is extremely toxic, especially for the liver, it is not used,” Kouretas said.

“Those that tested positive are in a sense very lucky because if they continued, they could have died.
Of the three banned substances for which the Greek athletes tested positive, methyltrienolone is the most dangerous.

The drug was held responsible for the death of about 200 people, mainly bodybuilders, in the 1960s.

“After three or four weeks of taking it, you get severe liver problems, and if you don’t stop, it could lead to death in a few months,” Kouretas.

“For the last 25 years, methyltrienolone has been used in hundreds of laboratory experiments on killing cancer cells. It is commercially called R-1881. But it is not used as an anabolic steroid,” Kouretas said.