Zac Efron: Don't Use Beano for Appendicitis!

Zac Efron signs autographs for screaming fans as he attends the UK premiere of 17 Again at the Odeon West End in London, England on Thursday (March 26).

The 21-year-old actor spoke about getting appendicitis and what his co-star Thomas Lennon advised him do! “I didn’t know what it was at the time and I was just trying to get through a day’s work,” said Zac. Tom [Thomas Lennon] kept telling me, ‘Dude, just eat some Beano; it’s gas, eat Beano,’ ” and I’m like, ” ‘I don’t think so, it doesn’t hurt like that.’ ” And he’s like, ” ‘No, I swear, if the worst comes to the worst, hang upside down.’ ” That was Tom‘s advice. [laughing.] He’s like, ” ‘Go hang upside down in your trailer,’ ” and I’m like, ” ‘What?!?!’

15+ pictures inside of Zac Efron being 17 Again in London…