Amiodarone HCl Injection, 150 mg/3 mL Vial

Critical CareVital, 99% service targetPrimary vendor Harborline Pharmaceuticals, lead 1 day, ordered every 3 days00143987510

Stock position

On hand
245 vial13.9 days of supply
On order
22 vialfirst arrives Mon Sep 14
Forecast rate
17.7 vial/daynext 30 days
Demand over 4 days
78 viallead time plus review period
Safety stock
34 vialempirical 99th percentile of forecast error
Reorder point
112 vialabove
Stockout
Mon Sep 28
Recommended order
noneby Fri Sep 25
Inventory value
$515at $2.10 per vial

How the forecast was made

Exponential smoothing11% weekly error, under-forecast2% worse than naive

A weighted recent average that learns the weekday pattern and any trend. Recent days count more than old ones.

Report card: the model was fit on history up to Tue Jul 21 and scored on the 56 days after. Weekly totals were off by 11% on average (31% day by day), and it under-forecast by 6% overall. A same-weekday-last-week guess would have been off by 10%.

Report card, week by week

Week ofUsedForecastErrorError %
Tue Jul 21160122-3824%
Tue Jul 28125122-32%
Tue Aug 4121122+11%
Tue Aug 11138122-1612%
Tue Aug 18109122+1312%
Tue Aug 25127122-54%
Tue Sep 1113122+98%
Tue Sep 8147122-2517%
All 8 weeks1,040976-646%

Weekly totals in vial. Error is forecast minus what was used, so a positive number means the model ran high. This window was hidden from the model when it was fit.

Demand forecast

last 180 days and the next 30
02346todayreport card windowThu Mar 19Wed Oct 14
actual forecast, 80% and 95% range what the model said during the report card windowvial/day

The model only knows the usage history. If you know something it does not, a coming surge, a new service line, a product being dropped, adjust the forecast and the stock math follows.

Projected on hand

0safety stock 34runs out Tue Sep 29tomorrowSun Oct 4
Projected on hand, vial: today's stock plus open orders on their expected dates, minus the forecast, day by day.

Lots and expiry

Earliest-expiry-first simulation against the forecast. Waste is what remains in a lot on its expiry date.

LotQuantityExpiresDaysUnit costProjected waste
L00066245Mon Aug 7693$2.100 vial · $0

Vendors and prices, last 90 days

VendorPart numberVendor descriptionSells byPaid per vialInvoices90-day spendPairing
Harborline Pharmaceuticals00143987510AMIODARONE HCL 50 MG/ML VIAL EAEA of 1$1.7929$2,072NDC exact
Cobalt Rx DistributorsCRX-54794AMIODA 50 SDV 1CTEA of 1$1.8615$1,083reviewed 0.90