The TV presenter will now spend at least two months in a clinic, after telling best friend Declan Donnelly and wife Lisa Armstrong he needed help.
Speaking to The Sun, Ant revealed how his problems with addiction were caused by depression.
He also suffers from chronic pain in his right knee after a botched operation two years ago, which caused him to become hooked on prescription painkillers.
A spokesperson for the star declined to comment further when contacted by HuffPost UK.
Ant has just finished work on the most recent series of ‘Britain’s Got Talent’, and he and Dec are currently on a break from their work commitments before the new series of ‘I’m A Celebrity... Get Me Out Of Here!’ starts in November.
The pair work solidly from November through until June presenting ‘I’m A Celebrity’, filming auditions for ‘BGT’ and hosting a series of ‘Saturday Night Takeaway’ before the ‘BGT’ live shows start each year.
Ant and Dec recently confirmed plans to host a special episode of their Saturday morning kids series ‘SM:TV Live’ alongside Cat Deeley, to celebrate its 20th anniversary next year.
Earlier this week, it was revealed the pair earn as much as £79,000 a day, thanks to their golden handcuffs deal with ITV, production companies and other ventures.
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