"Every 6 hours, PRN"
UD means Unique Design
Methadone you mean? Yes it does show up in a drug test.
Is it "prd" or "PRN"? PRN means "as needed".
'PO' or 'p.o.' means 'Per Oral'; that is, take the prescribed drug dose by mouth
Ud=Ut dictum is a latin word, meaning "as directed"
You will give too small a dose which may mean that the medication is not effective.
Amp. On a drug test stands for Amphetamines, drugs like Adderal, Adderal XR, vyvanse, Ect.
Are you lost? (formal) Ud is an abbreviation for "usted" which is the formal singular word for "you"
BID means twice a day. bidc would probably be an error.
Every morning
enough of a drug, if you take a lethal dose, it will kill you.