Piperacillin-Tazobactam for Injection, 3.375 g Vial
Stock position
- On hand
- 1,684 vial23.9 days of supply
- On order
- 38 vialfirst arrives Tue Sep 15
- Forecast rate
- 70.4 vial/daynext 30 days
- Demand over 4 days
- 301 viallead time plus review period
- Safety stock
- 108 vialempirical 99th percentile of forecast error
- Reorder point
- 409 vialabove
- Stockout
- Fri Oct 9
- Recommended order
- noneby Tue Oct 6
- Inventory value
- $11,451at $6.80 per vial
How the forecast was made
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 10% on average (21% day by day), and it under-forecast by 10% overall. A same-weekday-last-week guess would have been off by 8%.
Report card, week by week
| Week of | Used | Forecast | Error | Error % |
|---|---|---|---|---|
| Tue Jul 21 | 476 | 486 | +10 | 2% |
| Tue Jul 28 | 535 | 486 | -49 | 9% |
| Tue Aug 4 | 528 | 486 | -42 | 8% |
| Tue Aug 11 | 557 | 486 | -71 | 13% |
| Tue Aug 18 | 535 | 486 | -49 | 9% |
| Tue Aug 25 | 650 | 486 | -164 | 25% |
| Tue Sep 1 | 547 | 486 | -61 | 11% |
| Tue Sep 8 | 484 | 486 | +2 | 0% |
| All 8 weeks | 4,312 | 3,890 | -422 | 10% |
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 30The 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
Lots and expiry
Earliest-expiry-first simulation against the forecast. Waste is what remains in a lot on its expiry date.
| Lot | Quantity | Expires | Days | Unit cost | Projected waste |
|---|---|---|---|---|---|
| L00022 | 1,082 | Tue Jun 13 | 638 | $6.80 | 0 vial · $0 |
| L00021 | 602 | Tue Jul 25 | 680 | $6.80 | 0 vial · $0 |
Vendors and prices, last 90 days
| Vendor | Part number | Vendor description | Sells by | Paid per vial | Invoices | 90-day spend | Pairing |
|---|---|---|---|---|---|---|---|
| Harborline Pharmaceuticals | 63323030030 | PIPERACILLIN NA,TAZOBACTAM NA 3; .375 G/15ML; G/15ML VIAL EA | EA of 1 | $6.10 | 29 | $29,178 | NDC exact |
| Cobalt Rx Distributors | CRX-22474 | PIPERA 3;.375G/15ML;G/15ML SDV 10CT | PK of 10 | $6.37 | 14 | $15,095 | reviewed 0.90 |