Sheen was fired from Two and a Half Men in March after criticising the sitcom's creator Chuck Lorre in a series of manic television interviews.
In an interview with Reuters, Taylor expressed her belief that Sheen was abusing drugs in the period prior to his Two and a Half Men firing.
"It was painful for me to see him in pain and he did something very, very dangerous by, first of all, obviously doing drugs to that degree is dangerous, but quitting very violently is very dangerous too," Taylor said.
She added on Sheen: "He went through really an amazing thing out in public. I just was terrified for him. I think everybody was.
"But he got through it alive which is all anybody wanted… There were a few days there where I would open the paper, and I would be so frightened to see that something really terrible happened. I'm glad he escaped that."
Sheen was eventually replaced on Two and a Half Men by Ashton Kutcher.
Two and a Half Men airs Mondays at 9/8c on CBS.
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