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Product Revenue
 3 Months Ended
Mar. 31, 2022
Revenue from Contract with Customer [Abstract]  
Product Revenue Product Revenue
To date, the Company’s only source of product revenue has been from NUZYRA product sales beginning in February 2019 when NUZYRA was launched in the U.S. The following table summarizes balances and activity in each of the product revenue allowance and reserve categories (in thousands):
Chargebacks,
discounts and
fees
Government
and other
rebates
Returns
Patient
assistance
Total
Balance at December 31, 2021
$1,006 $5,198 $469 $339 $7,012 
Provision related to current period sales1,493 4,264 261 285 6,303 
Adjustment related to prior period sales(25)15 (133)— (143)
Credit or payments made during the period(1,338)(3,962)(390)(302)(5,992)
Balance at March 31, 2022
$1,136 $5,515 $207 $322 $7,180