as required, adv.
freq. cnt. 3
freq. cnt. 3
according to need (physicians use PRN in writing prescriptions)
<adv.all> freq. cnt.: 4 freq. cnt.: 3 freq. cnt.: 1
PRN as needed as required pro re nata
Word
according to need (physicians use PRN in writing prescriptions)
<adv.all> freq. cnt.: 4 freq. cnt.: 3 freq. cnt.: 1
PRN as needed as required pro re nata