What is the name of the symbol placed at the beginning of each staff of a musical score that determines the range of notes represented on the staff? 9 . What is the musical term used to describe the interval relationship between all notes that share the same pitch name? 10 .
Methadone is commonly used to treat addiction to opiates (such as heroin). Taken once a day, methadone eases opiate withdrawal for 24 to 36 hours, decreasing the chance of relapse.
1 The clearance half-life of methadone averages 30 hours. Urinary methadone excretion is pH dependent; excretion is decreased with increased urinary pH.  Patients who are taking methadone for therapeutic purposes excrete both parent methadone and metabolite in their urine.