The drug use is more implied but it is seen. Judy takes pills multiple times because people controlling her make her. Stuff like uppers and downers are shown being given to a young underaged Judy.
Drinking is very frequent throughout the movie.
Judy smokes cigarettes in many scenes.
Judy is shown overdosing on prescription drugs.
Judy takes pills multiple times, sometimes in front of her children. It is implied to be perscription medication, and not illicit drugs.
Pills like uppers and downers are shown being given to a teenage Judy.
Judy is intoxicated in at least two scenes.