While actor Charlie Sheen has had his own problems with drug and alcohol addiction, he recently decided to help his ex-wife Brooke Mueller in her own struggle against addiction. Sheen was unhappy that Mueller, the mother of his twin sons, went to Mexico and was receiving a controversial drug treatment. Ibogaine is a drug given to addicts in treatment programs in Mexico to help take the edge off drug cravings. Sheen flew to Mexico and brought Mueller back to the United States. Mueller is currently in a more traditional drug rehab program at an undisclosed location somewhere in the United States.