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Inventory
 3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Inventory

6. Inventory

Inventory consists of the following (in thousands):

 

 

 

March 31, 2022

 

 

December 31, 2021

 

Raw materials

 

$

25,649

 

 

$

21,193

 

Work in process

 

 

13,304

 

 

 

20,935

 

Finished goods

 

 

17,517

 

 

 

6,254

 

Total inventory

 

$

56,470

 

 

$

48,382

 

 

As of March 31, 2022, total inventory included $34.3 million related to ZYNRELEF, $20.9 million related to CINVANTI, and $1.3 million related to SUSTOL. As of December 31, 2021, total inventory included $23.6 million related to ZYNRELEF, $23.1 million related to CINVANTI, and $1.7 million related to SUSTOL.