Next month the ITV soap marks its 50th anniversary with its first live episode in ten years, but Warren has admitted that the Weatherfield show once made him miserable.
"It became inescapable," the 74-year-old told the Radio Times. "Once I went to Amsterdam to get away from it, put on the television and there was Ena Sharples with Dutch subtitles. I put my foot through the screen.
"After Coronation Street, what do you do for an encore? I had a drink while I thought about it - and that one turned into a million."
However, Warren continued to say that he required something stronger than alcohol in order to fill an apparent void.
"I used to have hugely upset tummies and in those days you could buy preparations with a quantity of morphine in them," he said. "I soon discovered it settled not just my tummy but the cold, lonely, aching place inside, too."
The current Radio Times features special edition covers of Corrie heroines across the years.