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Inventory
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventory

6. Inventory

Inventory consists of the following (in thousands):

 

 

 

March 31, 2023

 

 

December 31, 2022

 

Raw materials

 

$

16,409

 

 

$

15,137

 

Work in process

 

 

17,913

 

 

 

20,723

 

Finished goods

 

 

17,737

 

 

 

18,713

 

Total inventory

 

$

52,059

 

 

$

54,573

 

 

As of March 31, 2023, total inventory included $27.5 million related to ZYNRELEF, $21.0 million related to CINVANTI, $2.3 million related to SUSTOL and $1.3 million related to APONVIE. As of December 31, 2022, total inventory included $30.9 million related to ZYNRELEF, $19.9 million related to CINVANTI, $2.6 million related to SUSTOL and $1.2 million for APONVIE. For the three months ended March 31, 2023, cost of product sales included charges of $5.3 million resulting primarily from the write-off of short-dated ZYNRELEF inventory. There was no comparable activity for the three months ended March 31, 2022.