Meaning of bid and qd contained by prescription dosage?
Answer:
b.i.d. (Latin: bis surrounded by die) means twice a daytime dosing
q.d. (quaque die) means once a hours of daylight dosing
drochem is correct, but at many hospitals these abbreviation are being phased out hurriedly because of errors of interpretation and administration. One very soon has to write out two times day by day or every 12 hours or once daily. Physicians directions are becoming more and more computerized, so handwriting is becoming less of an issue.
b.i.d. = twice a time
qd = every day