European Journal of Anaesthesiology · 2001 · 38 citations · 14 references
In healthy volunteers, a single dose of tramadol 50 mg disturbs sleep in the night of drug application. With 100 mg, sleep is disturbed in both the night of drug application and in the subsequent night.
14
Sympathetic-Nerve Activity during Sleep in Normal Subjects
Virend K. Somers, Mark Eric Dyken, Allyn L. Mark et al. · New England Journal of Medicine · 1993 · 1.5K citations · Full text