Stevie Nicks "lost eight years" of her life to prescription medication.
The Fleetwood Mac singer no longer has faith in the medical profession after being prescribed Klonopin, an anti-anxiety drug, to help her from relapsing into cocaine addiction in 1986 but now doesn't think the pills were necessary and can't help but wonder what would have happened in her life if she hadn't had the treatment.
She said: "I was on Klonopin. It's a tranquiliser. You're tranquil. I stayed home in a really beautiful house, watched a lot of TV, and ordered from Jerry's deli. I went from 125 up to 173 pounds.
"One day I woke up and said, 'This doctor is insane. He's a groupie who wanted to have me come in a couple times a month to talk about rock 'n' roll'. I learned a valuable lesson. Never trust doctors, ever. I called up my best friend and said come get me and take me to a hospital. I spent 45 days there and got over it.
"I had gotten out of Betty Ford [rehab clinic] three months before I went to see him and I was doing great. But everyone was worried I was going to start using cocaine again. So I lost eight years of my life. Think of what could have happened during those eight years. I might have gotten married, I might have had a baby, I certainly would have made more albums."
Despite many years passing, Stevie, 65, still feels resentment towards the doctor.
Asked if she is still angry, she told the New York Times newspaper: "If I was driving a car and he was crossing the street I might run over him."

Sandra Bullock cried on Jay Leno's show last night (05.02.14).
The 49-year-old actress couldn't keep her emotions in check as she paid tribute to the talk show host on his second-to-last episode of 'The Tonight Show', from which he is bowing out after over 22 years.
She said: "I'd like to say something. I'm going to start crying. You've always been so kind. That's saying a lot in this business because we like to be mean.
"There's not been one time that you haven't treated me like I had something to offer. Even when the film was horrible and you knew it, you never let me see it in your eyes. When I made crazy life decisions you never questioned [them].
" You were always so welcoming and every single person on your crew was that way consistently and I just felt special even when I felt very insecure.
"And everyone I think, in this room and in this country, has felt that every day that you've been in their homes and I'm so grateful that I got to be a part of this."
In response, Jay kissed her hand and said: "Well, you are special."
Sandra - who was making her 20th appearance on the show - made her tribute after Jay teased her about flop movie 'Speed 2', noting he could finally ask rude questions.
He quipped: "I don't care anymore!"

Lily Aldridge looked stunning as she left the AmFar Gala in New York in an off the shoulder white gown. She paired the dress with an unusual brass necklace.

Paris Hilton cooled down in her hot pink mini dress with a sip of lemonade. The heiress had matched her look to her hot pink Bentley convertible as she made her way around Beverly Hills.

Kelly Rowland was all smiles as she headed into the Amfar Gala in New York. The 'Commander' singer opted for a serene colour pallette covering her pretty patterned blouse with a pale pink coat.

Ireland Baldwin looked bright and beautiful in a floral, full-length dress at the Amfar Gala in New York.

Karlie Kloss showed off her glowing complexion at the Amfar Gala in New York. The supermodel made the most of her natural beauty, pulling back her hair and adding a simple slick of red lipstick.

Oprah Winfrey opted for a black and white colour palette at the 29th Santa Barbara International Film Festival honors. The talk show host added a patent waist belt to show off her curves and diamond earrings for a touch of glamour.

Jessica Alba chose a quirky tiger print tee for the 100 Years of Beverly Hills party at the Crustacean restaurant in California. The actress added an oversize clutch and leather pencil skirt to finish off the look.

Heavily pregnant Olivia Wilde concealed her baby bump under an all black ensemble as she strolled around Los Angeles.

Kate Bosworth channelled 70's style as she pushed a trolly around a grocery store in Hollywood. The actress teamed her sheepskin jacket with retro shades and ankle boots.

William Roache says there are "no winners" after being acquitted of historic sexual abuse charges.
The 'Coronation Street' actor, who was today (06.02.14) found not guilty of four counts of indecent assault and two rapes against girls under 16 between 1965 and 1971, gave a short statement outside Preston Crown Court after the trial jury reached its unanimous decision.
William, 81, told reporters: "I'd like to thank all those who've supported me during this situation.
"First and foremost, ITV Granada for their loyalty and support all the way through.
"And of course, my family, who you have seen.
"I'd like to thank my colleagues and friends who've supported me, and all the people I don't even know who have sent me great support through all this."
The actor - who has played soap favourite Ken Barlow in 'Corrie' since its first episode in 1960 - poignantly ended his brief speech by calling for people to be "kinder" to one another following his court experience.
He added: "In these situations there are no winners. And I think we should all be much kinder to ourselves.
"Now, if you'll excuse me, I'd like to get back to work."
Meanwhile, ITV has issued a statement regarding William's future on the long-running soap, saying: "We look forward to talking to Bill soon about his return to work."
The actor hasn't been seen in 'Corrie' since May 2013, when the historic sexual abuse charges were first brought against him.