Unit-dose medications have been
“Those medications which are ordered,
packaged, handled, administered and
charged in multiples of single dose units
containing a predetermined amount of drugs
or supply sufficient for one regular dose
application or use.”
Other definition :-
• One Unit dose Dispense (OUDD) is define as:-
( system for preparation and distribution of drug
served in a single dose and made ready to be
consumed once )
What is Drug Distribution?
• Manner in which medications are provided
from the pharmacy to the clinical unit
• Includes the period of time from when the
drug is “dispensed” until it is
- Type of Drug Distribution :-
Unit Dose System
• First used in hospitals in 1960’s.
• Used to decrease medication
administration errors by nursing staff,
and reduce medication waste .
What is advantage of unit dose system ?
1- Patients receive improved pharmaceutical
service 24 hours a day and are charged for only
those doses, which are administered to them.
2- All doses of medication required at the nursing
station are prepared by the pharmacy thus
allowing the nurse more time for direct patient
3- Allow the pharmacists to interpret or
check a copy of the physician’s original
order thus reducing medication errors.
4- Elimination excessive duplication of
orders and paper work at the nursing
station and pharmacy.
5- Eliminates credits.
6-Transfers intravenous preparation and
drug reconstitution procedures to the
pharmacy. (Return medicine)
7-Promotes more efficient utilization of
professional and non- professional
8-Reduces revenue losses.
9-Conserves space in nursing units by
eliminating bulky floor stock.
10-Eliminates pilferage and drug waste.
11-Extends pharmacy coverage and control
throughout the hospital from the time the
physician writes the order to the time the
patient receives the unit-dose.
14- Central Location of Drugs.
15-Medications Ready for Administration.
16- Patient Safety.
What is disadvantage of unit dose system ?
1- More pharmacy processing time and
2- Requires more storage space
3- No cost savings to pharmacy