Zac Efron Overdose, Drug Abuse Details By Author Free Britney Published: Sep 26, 2013 at 12:18 PM • Updated: May 09, 2022 at 11:55 PM • Category Zac Efron Reading Time: < 1 minute It was revealed that Zac Efron went to rehab twice for a drug problem, so now obviously the sad stories are coming out of the woodwork.