manual on management of drugs

Step 2
Identify the stock available as at the date of preparation of estimates.
Determine the availability in months based on the above forecasted
monthly requirement.
Step 3
Based on stock availability duration in months determined as above,
identify the delivery of
1 st quarter/1 st lot of year - 2
Condition:
Acceptance of stock during the period from the date of stock
considered and end year should be only to build two months buffer
stock as at January of the following year (year - 2)
Step 4
Estimation for the said year (Year - 2)
Condition:
Quantity estimated to build a two months buffer stock as at January
of year - 3
based on forecasted monthly requirement.
Step 5
Illustrated by an example for estimating year – 2 requirement
is 14
The anticipated stock duration as at January of year - 2 is 1
The number of months from January Year –2 to February – Year –3
Then request is for 14 –1 = 13.
Hence the estimate for year - 02 is 13 x the Forecasted Monthly
Requirement (FMR) ,
Hence the estimate for year – 02 is 13x3,300 = 42,900units
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