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 is an opioid that has recently been introduced into routine veterinary medicine practice, and its analgesic effects have been of great interest. It acts as a Mu-opioid receptor agonist and as an N-methyl-D-aspartate (NMDA) receptor antagonist [18],[19]. Additionally, methadone is considered to be as powerful as morphine but causes fewer side effects, such as nausea, vomiting, and dysphoria [20].