eagles soar like any other birds on updrafts. So it depends upon the weather really. They can usually soar for about 15-20minutes or longer if air conditions are right. It depends. Given ideal wind conditions - lots of updrafts and thermal pockets, eagles can glide for hours.
In 1964, the effectiveness and usefulness of using methadone maintenance (i.e., using it as a substitute narcotic to prevent withdrawal) was realized. In the spring of 1971, methadone treatment for opiate dependence began to expand.
Methadone, sold under the brand name Dolophine, among others, is an opioid used to treat pain and as maintenance therapy or to help with detoxification in people with opioid dependence. Detoxification using methadone can either be done relatively rapidly in less than a month or gradually over as long as six months.