Bryan Wiseman, who appeared as a supporting actor in the soap, has told Australia's The Sunday Telegraph that it was common for the younger cast members to take cocaine and lead reckless lifestyles.
"Drugs are common. A lot of people do it, apart from the older cast like Ray Meagher (Alf Stewart).
"Generally speaking, the younger cast members come in, they like the lifestyle and they have drugs offered to them."
The 40-year-old actor claims that it wasn't uncommon for stars to turn up to work after a big night and consume more cocaine to help get them through the day.
"It's commonplace in the green rooms. Some of the kids would turn up, they hadn't been to bed all night, they didn't know their lines.
"Because some hadn't been to bed, to keep themselves awake they'd do a few more snorts of cocaine to get them through the day.
"It was well known that if you want a good performance in that instance, you'd have a few lines. It was extremely common."
Wiseman said that he was "surprised this hasn't come to light earlier", and even accused Australia's television networks of buying incriminating photographs of their top stars from the paparazzi.
"When actors or celebrities are found in the gutter, nearly comatose, and one of the paps takes a shot, TV networks actually pay a lot of money to take the photos and do away with them to cover it up."
Last month, Home and Away stars Jodi Gordon and Lincoln Lewis found themselves embroiled in two public scandals. Gordon was accused of taking cocaine and paying for female strippers, while Lewis admitted his part in a sex tape.