Will it be easy for a person to gain access to methadone?

I know that this is used as a prescription medicine for those who are getting themselves treated for opiate addiction. However, will the people who aren't getting themselves treated be able to get methadone? I know that this can be addictive, so I was just wondering if non-addicts can gain access to this.

: http://alcoholdrugstreatment.info/will-it-be-easy-for-a-person-to-gain-access-to-methadone