Which piece of information is NOTrequired on a medication order label?

The medication lot number does not need to appear on the prescription label. The required information on a prescription label includes the date when the prescription was filled, serial (prescription) number of the prescription, pharmacy name and address, patient name, prescribing physician name, all directions for use of the prescription, generic or brand name of the prescription, medication strength, drug manufacturer name, drug quantity, prescription expiration, licensed pharmacist’s initials, and number of refills allowed.