As Dorothy in The Wizard of Oz, Judy Garland cemented her place in Hollywood as a beloved icon. The wholesome Kansas farm girl who only wants to return home after finding herself in the land of Oz, Dorothy was sweet and caring, and audiences were smitten with her from the first scene.

But the lead-up to and making of the 1939 classic was a far more treacherous landscape for the teenager to navigate than the fictional perils of Oz. Garland would endure excruciatingly long work hours and a studio system that turned a blind eye to, and in fact often encouraged, the use of substances such as stimulants to keep performers working, and sleeping pills to ensure they would be able to rest.

By the time 17-year-old Garland finished filming Oz, she was already addicted to barbiturates and amphetamines. Her use of the drugs had started before the actress slipped into those ruby slippers, in part due to studio bosses who demanded she remain thin, and energetic enough to cope with arduous days of filming.

Substance abuse would become an issue she would fight the remainder of her life until she died of an accidental overdose in 1969 at age 47, leaving behind her three children (Liza Minnelli and Lorna and Joey Luft), five marriages and an artistic legacy often overshadowed by the tragedies of her short life.

READ MORE: Judy Garland's Life Was in a Downward Spiral Before Her 1969 Death

Garland's mother was the first person to give her pills

Born Frances Ethel Gumm in Grand Rapids, MN on June 10, 1922, Garland was pushed to perform at a young age by her mother Ethel, a frustrated vaudeville performer who put her daughters on the stage as early as possible. At the tender age of two-and-a-half, Garland was in the spotlight performing alongside her sisters. In later life, Garland would remember her mother as “the real Wicked Witch of the West.”

According to Get Happy: The Life of Judy Garland biographer Gerald Clarke, Garland’s mother was the first to provide pills – both for energy and sleep – to her not yet 10-year-old daughter.

Margaret Hamilton as the Wicked Witch and Judy Garland as Dorothy Gale in 'The Wizard of Oz'
Margaret Hamilton as the Wicked Witch and Judy Garland as Dorothy Gale in "The Wizard of Oz"
Photo: Silver Screen Collection/Hulton Archive/Getty Images

Studio execs called her 'fat little pig with pigtails'

Signed to Metro Goldwyn Mayer as a teenager, she appeared in more than two dozen films for the studio, many with co-star Mickey Rooney, himself a teen at the time. Under contract, she was constantly scrutinized by studio bosses, particularly in reference to her weight.

Garland appeared in her first feature film in 1936 at age 14, a musical comedy about football coaches called Pigskin Parade. Studio head Louis B. Mayer and the MGM bosses were reportedly already worried about any extra weight on the diminutive star, going so far as to refer to her as a “fat little pig with pigtails.” Placed on what would be the first of many diets, Garland’s food intake was severely restricted and monitored closely. To maintain her weight, Mayer insisted she consume only chicken soup, black coffee and cigarettes, along with pills to reduce her appetite.

“Most of her teen and adult life, she had been on either Benzedrine or a diet or both,” Garland’s third husband Sid Luft wrote in his memoir Judy and I: My Life With Judy Garland. "Unlike other actresses, she could not successfully camouflage extra weight, especially because she was dancing and singing in revealing costumes. Just 4 feet 11 ½ inches, she could be underweight and still appear heavy or out of proportion on screen.”

READ MORE: Judy Garland’s Personal Life Was a Search for Happiness She Often Portrayed Onscreen

Garland said taking pills was 'a way of life'

Known as “pep pills” in the industry, Garland wasn’t alone in being forced to take the drugs. Her co-star Rooney – the two appeared in films together such as Babes In Arms, Love Finds Andy Hardy and Strike Up the Band – was also forced to consume them. Both Garland and Rooney were stretched to the limit for the studio, and neither spoke of what they endured until years later.

“They had us working days and nights on end. They’d give us pills to keep us on our feet long after we were exhausted. Then they’d take us to the studio hospital and knock us out with sleeping pills­ – Mickey sprawled out on one bed and me on another,” Garland told biographer Paul Donnelley. “Then after four hours they’d wake us up and give us the pep pills again so we could work 72 hours in a row. Half of the time we were hanging from the ceiling but it was a way of life for us.”

A year prior to The Wizard of Oz, studio managers were sending memos to each other detailing Garland’s food intake. By the time cameras began rolling on the film, Garland was already in an upper/downer drug cycle.

Despite being prescribed, Garland called herself a 'walking advertisement for sleeping pills'

At age 17 Garland was a fleshy teenager heading into early womanhood. To ensure Dorothy’s wholesome, young appearance wouldn’t be questioned by the audience, the studio resorted to strapping Garland’s breasts down and utilizing corsets to evoke a slim silhouette, on top of a steady diet of drugs and very little food. That Garland produced such an indelible performance under such extreme circumstances only highlights her innate talents.

Yo-yo dieting and reliance on pills was now so firmly established that Garland would struggle with both, along with heavy alcohol consumption, for the rest of her life. “At times I have been pretty much of a walking advertisement for sleeping pills,” Garland said in her later years. “Even though pills come on doctor’s prescriptions, as mine did, they can be a tremendous strain on the nervous systems.”

“I do think my mother was a victim of the studio system,” Garland’s daughter Lorna told Studio 10 in 2017. “But it also gave her the ability to channel her talent to all of us [as an audience]. It was a real double-edged sword.”