The 71-year-old celebrated after a 3-0 win over Aston Villa at Old Trafford handed United the Premier League title with four matches still to play.
Asked about his own future plans, Ferguson joked: "Look at me - it's taken 10 years off me. It's these tablets, they're great!"
Ferguson also hailed Robin van Persie as having a similar impact as Eric Cantona after the Dutch striker's hat-trick secured the victory.
Van Persie's treble included a stunning volley and Ferguson admitted the summer signing from Arsenal had been crucial.
It also ended a long wait for a Premier League title for 29-year-old Van Persie after years of trying with the Gunners.
Ferguson said: "He has made a fantastic contribution to our season.
"In terms of impact he has as big as an impact as anyone I can imagine. Cantona was an incredible impact player and I have been very, very lucky, I have had some fantastic strikers right through, probably 10 great strikers at the club.
"I think we had an expectation. His performance for Arsenal last year was sensational and I remember Arsene saying to me 'he's a better player than you think' when we concluded the deal and I think he was right.
"He's in his mature years and winning the league meant the world to him."