Biggest changeRisk Factors in this Form 10-K may be heightened 51 Table of Contents Results of Operations Consolidated Results The following table sets forth our summarized, consolidated results of operations (dollars in thousands): Years Ended December 31, Increase (Decrease) 2022 2021 $ % Net revenue $ 2,212,304 $ 2,093,669 $ 118,635 5.7% Cost of goods sold 1,416,485 1,302,004 114,481 8.8% Cost of goods sold impairment charges 11,111 22,692 (11,581) (51.0)% Gross profit 784,708 768,973 15,735 2.0% Selling, general and administrative 399,700 365,504 34,196 9.4% Research and development 195,688 201,847 (6,159) (3.1)% In-process research and development impairment charges 12,970 710 12,260 nm Intellectual property legal development expenses 4,358 7,716 (3,358) (43.5)% Acquisition, transaction-related and integration expenses 709 8,055 (7,346) (91.2)% Restructuring and other charges 1,421 1,857 (436) (23.5)% Change in fair value of contingent consideration 731 200 531 nm (Insurance recoveries) charges for property losses and associated expenses, net (1,911) 5,368 (7,279) (135.6)% Charges related to legal matters, net 269,930 25,000 244,930 nm Other operating income (3,960) — (3,960) nm Operating (loss) income (94,928) 152,716 (247,644) (162.2)% Total other expense, net (153,199) (121,350) (31,849) 26.2% (Loss) income before income taxes (248,127) 31,366 (279,493) nm Provision for income taxes 6,662 11,196 (4,534) (40.5)% Net (loss) income $ (254,789) $ 20,170 $ (274,959) nm nm - not meaningful Net Revenue Net revenue for the year ended December 31, 2022 increased by 5.7%, or $118.6 million, compared to the prior year, and was attributable to growth in net revenue in both the Generics and AvKARE segments, partially offset by a slight decrease in net revenue in the Specialty segment as follows: • Generics net revenue for the year ended December 31, 2022 increased by 4.8%, or $65.7 million, as compared to the prior year, primarily due to new products launched in 2022 and 2021 that contributed net revenue growth of $42.4 million, the favorable year-over-year impact of lower returns relating to Oseltamivir (generic Tamiflu®), volume growth, and $8.0 million in license revenue from an agreement with Orion Corporation (“Orion”), partially offset by continued price erosion.
Biggest changeNotwithstanding our estimates, rising inflationary pressures due to higher input costs, including higher material, transportation, labor and other costs, could exceed our expectations and may adversely impact our operating results in future periods. 52 Results of Operations Consolidated Results The following table sets forth our summarized, consolidated results of operations (dollars in thousands): Years Ended December 31, Increase (Decrease) 2023 2022 $ % Net revenue $ 2,393,607 $ 2,212,304 $ 181,303 8.2% Cost of goods sold 1,573,042 1,427,596 145,446 10.2% Gross profit 820,565 784,708 35,857 4.6% Selling, general and administrative 429,675 399,700 29,975 7.5% Research and development 163,950 195,688 (31,738) (16.2)% In-process research and development impairment charges 30,800 12,970 17,830 137.5% Intellectual property legal development expenses 3,828 4,358 (530) (12.2)% Acquisition, transaction-related and integration expenses — 709 (709) (100.0)% Restructuring and other charges 1,749 1,421 328 23.1% Change in fair value of contingent consideration (14,497) 731 (15,228) nm Insurance recoveries for property losses and associated expenses — (1,911) 1,911 (100.0)% Charges related to legal matters, net 1,824 269,930 (268,106) (99.3)% Other operating income (1,138) (3,960) 2,822 (71.3)% Operating income (loss) 204,374 (94,928) 299,302 nm Total other expense, net (244,644) (153,199) (91,445) 59.7% Loss before income taxes (40,270) (248,127) 207,857 (83.8)% Provision for income taxes 8,452 6,662 1,790 26.9% Net loss $ (48,722) $ (254,789) $ 206,067 (80.9)% nm - not meaningful Net Revenue Net revenue for the year ended December 31, 2023 increased 8.2% from the prior year primarily due to: • Growth in our Generics segment of $39.3 million primarily due to new generics products launched in 2023 and 2022, which included biosimilars that contributed $62.6 million and new generic products that contributed $47.4 million, partially offset by price erosion.
Item 1. Business and Item 1A. Risk Factors in this Form 10-K. Inflation While it is difficult to accurately measure the impact of inflation, we estimate our business experienced an increase in costs due to inflation of approximately $30.0 million for the year ended December 31, 2022.
Item 1. Business and Item 1A. Risk Factors in this Form 10-K. Inflation While it is difficult to accurately measure the impact of inflation, we estimate our business experienced an increase in costs due to inflation of approximately $15.0 million for the year ended December 31, 2023.
Charges Related to Legal Matters, Net Generics charges related to legal matters, net for the year ended December 31, 2022 were $22.4 million and were primarily comprised of $18.0 million of charges for civil prescription opioid litigation. Refer to Note 21.
For the year ended December 31, 2022, Generics charges related to legal matters, net were $22.4 million, primarily comprised of $18.0 million of charges for civil prescription opioid litigation. Refer to Note 21. Commitments and Contingencies for additional information.
Other Operating Income Other operating income for the year ended December 31, 2022 of $4.0 million was comprised of income earned from the India Production Linked Incentive Scheme for the Pharmaceutical Sector in our Generics segment. Refer to Note 6. Government Grants for additional information.
Other Operating Income Other operating income for the year ended December 31, 2023 and 2022 was comprised of income earned from the India Production Linked Incentive Scheme for the Pharmaceutical Sector in our Generics segment. Refer to Note 6. Government Grants for additional information.
In-Process Research and Development Impairment Charges Generics IPR&D impairment charges of $13.0 million for the year ended December 31, 2022 were related to one asset that experienced a delay in its expected launch date and one asset that experienced significant expected price erosion, both of which resulted in significantly lower than expected future cash flows.
Generics IPR&D impairment charges of $13.0 million in the prior year were related to one asset that experienced a delay in its expected launch date and one asset that experienced significant expected price erosion, both of which resulted in significantly lower than expected future cash flows .
We estimate that we will invest approximately $50.0 million to $60.0 million during 2023 for capital expenditures to support and grow our existing operations, primarily related to investments in manufacturing equipment, information technology and facilities. 57 Table of Contents Debt Instruments Over the next 12 months, we expect to make substantial payments for monthly interest and quarterly principal amounts due for our debt instruments, including our Term Loan and Rondo Term Loan, contractual payments for leased premises, and payments for legal settlements.
We estimate that we will invest approximately $60.0 million to $70.0 million during 2024 for capital expenditures to support and grow our existing operations, primarily related to investments in manufacturing equipment, IT and facilities. 57 Debt Instruments Over the next 12 months, we expect to make substantial payments for monthly interest and quarterly principal amounts due for our Term Loan Due 2028, monthly interest under our Term Loan Due 2025, and contractual payments for leased premises.
Commitments and Contingencies for additional information. 55 Table of Contents Other Operating Income Generics other operating income for the year ended December 31, 2022 of $4.0 million was comprised of income earned from the India Production Linked Incentive Scheme for the Pharmaceutical Sector. Refer to Note 6. Government Grants for additional information.
Other Operating Income Generics other operating income for the years ended December 31, 2023 and 2022 was comprised of income earned from the India Production Linked Incentive Scheme for the Pharmaceutical Sector. Refer to Note 6. Government Grants for additional information.
We make our investments in accordance with our investment policy. The primary objectives of our investment policy are liquidity and safety of principal. Cash Flows For a discussion comparing of our cash flows for the fiscal years 2021 to 2020, see Cash Flows under
The primary objectives of our investment policy are liquidity and safety of principal. 58 Cash Flows For a discussion comparing of our cash flows for the fiscal years 2022 to 2021, see Cash Flows under
Provision For Income Taxes The provision for income taxes was $6.7 million and $11.2 million for the years ended December 31, 2022 and 2021, respectively. The effective tax rates for the years ended December 31, 2022 and 2021 were (2.7%) and 35.7%, respectively.
Provision For Income Taxes The provision for income taxes was $8.5 million and $6.7 million for the years ended December 31, 2023 and 2022 , respectively. The effective tax rates for the years ended December 31, 2023 and 2022 were (21.0)% and (2.7%), respectively.
Annually, we are also required to calculate the amount of excess cash flows, as defined in the Term Loan agreement. Based on the results of the excess cash flows calculation for the year ended December 31, 2020, the Company made a $14.4 million additional principal payment towards our Term Loan March 2021.
Based on the results of the excess cash flows calculation for the year ended December 31, 2020, the Company made a $14.4 million additional principal payment towards our Term Loan Due 2025 in March 2021.
(Insurance Recoveries) Charges for Property Losses and Associated Expenses, Net for additional information. 53 Table of Contents Charges Related to Legal Matters, Net For the year ended December 31, 2022, we recorded charges of $269.9 million, primarily for corporate Opana® ER antitrust litigation of $262.8 million and Generics segment civil prescription opioid litigation of $18.0 million, partially offset by corporate insurance recoveries associated with securities class actions of $15.5 million.
For the year ended December 31, 2022, we recorded charges of $269.9 million primarily for the corporate Opana® ER antitrust litigation of $262.8 million and Generics segment civil prescription opioid litigation of $18.0 million, partially offset by corporate insurance recoveries associated with securities class actions of $15.5 million. For further details, refer to Note 21. Commitments and Contingencies.
In-Process Research and Development Impairment Charges IPR&D impairment charges of $13.0 million for the year ended December 31, 2022 were related to one Generics asset which experienced a delay in its expected launch date and one Generics asset which experienced significant expected price erosion, both of which resulted in significantly lower than expected future cash flows.
IPR&D impairment charges of $13.0 million in the prior year were related to one Generics asset which experienced a delay in its expected launch date and one Generics asset which experienced significant expected price erosion, both of which resulted in significantly lower than expected future cash flows. Change in Fair Value of Contingent Consideration Refer to Note 19.
As a result, we are subject to market risk associated with changes in foreign exchange rates. We maintain cash balances at both U.S. based and foreign country based commercial banks. At various times during the year, our cash balances held in the United States may exceed amounts that are insured by the Federal Deposit Insurance Corporation.
A portion of our cash flows are derived outside the U.S. As a result, we are subject to market risk associated with changes in foreign exchange rates. We maintain cash balances at both U.S. based and foreign country based commercial banks.
Generics gross profit for the year ended December 31, 2022 was $536.0 million (37.4% of net revenue) as compared to gross profit of $518.1 million (37.9% of net revenue) for the prior year as a result of the factors described above.
Specialty gross profit as a percentage of net revenue decreased to 45.1% for the year ended December 31, 2023 as compared to 51.2% in the prior year as a result of the factors described above.
Based on the results of the excess cash flows calculation for the years ended December 31, 2022 and 2021, no excess cash flows principal payments were required. Related to our Rondo Term Loan, we made prepayments totaling $58.3 million towards the outstanding principal during the year ended December 31, 2022, in addition to planned principal payments .
Annually, we are also required to calculate the amount of excess cash flow payments, as defined in our term loan agreements. Based on the results of the excess cash flows calculation for the years ended December 31, 2023, 2022 and 2021, no excess cash flows principal payments were required.
The increase was primarily attributable to increased volume, inflation, and a year-over-year reduction in operating efficiency, partially offset by a reduction in marketed product intangible asset impairment charges. Year-over-year, inflation increased cost of goods sold by approximately $17.0 million, primarily related to freight costs.
The increase in cost of goods sold was primarily due to increased AvKARE and Generics volume, a $25.0 million increase in marketed product intangible asset impairment charges primarily related to a reduction in promotional focus on LYVISPAH™ in our Specialty segment, and an increase in the inventory provision, partially offset by efficiencies in our supply costs.
We believe these sources are sufficient to fund our planned operations, meet our interest and contractual obligations and provide sufficient liquidity over the next 12 months.
Debt ), including $225.2 million of available capacity on our Amended New Revolving Credit Facility and $28.0 million of available capacity under the Amended Rondo Revolving Credit Facility as of December 31, 2023 . We believe these sources are sufficient to fund our planned operations, meet our interest and contractual obligations and provide sufficient liquidity over the next 12 months.
Generics The following table sets forth the results of operations for our Generics segment (dollars in thousands): Years Ended December 31, Increase (Decrease) 2022 2021 $ % Net revenue $ 1,432,073 $ 1,366,338 $ 65,735 4.8% Cost of goods sold 890,245 825,568 64,677 7.8% Cost of goods sold impairment charges 5,786 22,692 (16,906) (74.5)% Gross profit 536,042 518,078 17,964 3.5% Selling, general and administrative 109,781 64,500 45,281 70.2% Research and development 167,509 158,365 9,144 5.8% In-process research and development impairment charges 12,970 710 12,260 nm Intellectual property legal development expenses 4,251 7,562 (3,311) (43.8)% Acquisition, transaction-related and integration expenses 25 — 25 nm Restructuring and other charges 821 80 741 nm (Insurance recoveries) charges for property losses and associated expenses, net (1,911) 5,368 (7,279) (135.6)% Charges related to legal matters, net 22,400 — 22,400 nm Other operating income (3,960) — (3,960) nm Operating income $ 224,156 $ 281,493 $ (57,337) (20.4)% nm - not meaningful Net Revenue Generics net revenue for the year ended December 31, 2022 increased by 4.8%, or $65.7 million, as compared to the prior year, primarily due to new products launched in 2022 and 2021 that contributed net revenue growth of $42.4 million, the favorable year-over-year impact of lower returns relating to Oseltamivir (generic Tamiflu®), volume growth, and $8.0 million in license 54 Table of Contents revenue from the agreement with Orion, partially offset by continued price erosion.
The year-over-year change in the provision for income taxes was primarily related to the timing and mix of income, and to the release of liabilities for uncertain tax positions in 2022. 54 Generics The following table sets forth the results of operations for our Generics segment (dollars in thousands): Years Ended December 31, Increase (Decrease) 2023 2022 $ % Net revenue $ 1,471,401 $ 1,432,073 $ 39,328 2.7% Cost of goods sold 913,869 896,031 17,838 2.0% Gross profit 557,532 536,042 21,490 4.0% Selling, general and administrative 119,912 109,781 10,131 9.2% Research and development 132,233 167,509 (35,276) (21.1)% In-process research and development impairment charges 26,500 12,970 13,530 104.3% Intellectual property legal development expenses 3,708 4,251 (543) (12.8)% Acquisition, transaction-related and integration expenses — 25 (25) (100.0)% Restructuring and other charges 211 821 (610) (74.3)% Insurance recoveries for property losses and associated expenses — (1,911) 1,911 (100.0)% (Credit) charges related to legal matters, net (64) 22,400 (22,464) (100.3)% Other operating income (1,138) (3,960) 2,822 (71.3)% Operating income $ 276,170 $ 224,156 $ 52,014 23.2% nm - not meaningful Net Revenue Generics net revenue for the year ended December 31, 2023 increased 2.7% as compared to the prior year, primarily due to new generic products launched in 2023 and 2022, which included biosimilars that contributed $62.6 million and new generic products that contributed $47.4 million, partially offset by price erosion.
The timing and amount of any payments under the TRA will also vary, depending upon a number of factors including the timing and number of Amneal common units sold or exchanged for our class A Common Stock, the price of our class A Common Stock on the date of sale or exchange, the timing and amount of our taxable income, and the tax rate in effect at the time of realization of our taxable income.
The timing and amount of any payments under the TRA may vary, depending upon a number of factors including the timing and amount of our taxable income, and the corporate tax rate in effect at the time of realization of our taxable income (the TRA liability is determined based on a percentage of the corporate tax savings from the use of the TRA’s attributes).
Specialty The following table sets forth the results of operations for our Specialty segment (dollars in thousands): Years Ended December 31, Increase (Decrease) 2022 2021 $ % Net revenue $ 374,121 $ 378,319 $ (4,198) (1.1)% Cost of goods sold 177,107 193,562 (16,455) (8.5)% Cost of goods sold impairment charges 5,325 — 5,325 nm Gross profit 191,689 184,757 6,932 3.8% Selling, general and administrative 90,031 84,481 5,550 6.6% Research and development 28,179 43,482 (15,303) (35.2)% Intellectual property legal development expenses 107 154 (47) (30.5)% Acquisition, transaction-related and integration expenses 49 16 33 nm Change in fair value of contingent consideration 731 200 531 nm Operating income $ 72,592 $ 56,424 $ 16,168 28.7% nm - not meaningful Net Revenue Specialty net revenue for the year ended December 31, 2022 decreased 1.1%, or $4.2 million, compared to the prior year, driven by the loss of exclusivity of Zomig® nasal spray and a decline in our other non-promoted products.
Specialty The following table sets forth the results of operations for our Specialty segment (dollars in thousands): Years Ended December 31, Increase (Decrease) 2023 2022 $ % Net revenue $ 390,457 $ 374,121 $ 16,336 4.4% Cost of goods sold 214,277 182,432 31,845 17.5% Gross profit 176,180 191,689 (15,509) (8.1)% Selling, general and administrative 88,137 90,031 (1,894) (2.1)% Research and development 31,717 28,179 3,538 12.6% In-process research and development impairment charges 4,300 — 4,300 nm Intellectual property legal development expenses 120 107 13 12.1% Acquisition, transaction-related and integration expenses — 49 (49) (100.0)% Restructuring and other charges 1,105 — 1,105 nm Change in fair value of contingent consideration (14,497) 731 (15,228) nm Operating income $ 65,298 $ 72,592 $ (7,294) (10.0)% nm - not meaningful Net Revenue Specialty net revenue for the year ended December 31, 2023 increased 4.4% as compared to the prior year, driven by the growth in our endocrinology portfolio of $21.0 million, or 23.8%, and a $2.2 million, or 1.2%, increase in our neurology portfolio, which was negatively impacted by Medicare rebates associated with the Inflation Reduction Act of approximately $6.4 million.
AvKARE gross profit for the year ended December 31, 2022 was $57.0 million (14.0% of net revenue) as compared to gross profit of $66.1 million (19.0% of net revenue) for the prior year. The year-over-year decrease in gross profit as a percentage of net revenue primarily related to the increase in sales through our lower margin distribution channel.
Cost of Goods Sold and Gross Profit AvKARE cost of goods sold for the year ended December 31, 2023 increased 27.4% as compared to the prior year, and gross profit as a percentage of net revenue increased to 16.3% for the year ended December 31, 2023 from 14.0% in the prior year primarily due to the increase in sales through our higher margin government channel, including higher margin new product introductions.
Our gross profit as a percentage of net revenue decreased as compared to the prior year primarily as a result of the factors noted above. Selling, General and Administrative Selling, general and administrative (“SG&A”) expenses for the year ended December 31, 2022 increased 9.4%, or $34.2 million, compared to the prior period.
Gross profit as a percentage of net revenue decreased to 34.3% for the year ended December 31, 2023 from 35.5% in the prior year, primarily as a result of the factors noted above. 53 Selling, General and Administrative Selling, general and administrative (“SG&A”) expenses for the year ended December 31, 2023 increased 7.5% as compared to the prior year primarily due to increases in employee compensation, higher costs associated with our biosimilar launches, higher freight charges driven by increased sales volume, and higher professional fees associated with the Reorganization, partially offset by a decrease of $5.0 million associated with a biosimilar regulatory approval in the prior year.
Generics IPR&D impairment charges of $0.7 million in the prior year were related to one asset that experienced a delay in its expected launch date, resulting in significantly lower than expected future cash flows.
In-Process Research and Development Impairment Charges Generics IPR&D impairment charges of $26.5 million for the year ended December 31, 2023 were related to one asset that experienced adverse clinical trials results in the fourth quarter of 2023 and resulted in significantly lower than expected future 55 cash flows.
Cost of Goods Sold and Gross Profit AvKARE cost of goods sold for the year ended December 31, 2022 increased 23.4%, or $66.3 million, compared to the prior year.
Excluding these rebates, net revenue from our neurology portfolio increased 4.7%. Cost of Goods Sold and Gross Profit Cost of goods sold increased 10.2% for the year ended December 31, 2023 as compared to the prior year.
The increase was primarily due to an increase in employee compensation, costs associated with our biosimilar launches, including a $5.0 million expense associated with a biosimilar regulatory approval, the launches of our new specialty products and increased logistics costs.
Selling, General, and Administrative Generics SG&A for the year ended December 31, 2023 increased by 9.2% compared to the prior year primarily due to an increase in employee compensation, higher costs associated with our biosimilar launches, and higher freight charges driven by increased sales volume, partially offset by a decrease of $5.0 million associated with a biosimilar regulatory approval in the prior year.
Selling, General, and Administrative Specialty SG&A expense for the year ended December 31, 2022 increased $5.6 million, or 6.6%, as compared to the prior year, driven by an increase in expenses related to upcoming launches of specialty products and the launch of Lyvispah™ during 2022.
Selling, General, and Administrative Specialty SG&A expense for the year ended December 31, 2023 decreased 2.1% as compared to the prior year primarily due to a decrease in third-party marketing spend for our promoted products. 56 Research and Development Specialty R&D expense for the year ended December 31, 2023 increased 12.6% as compared to the prior year primarily due to an increase in project related spend of $7.7 million and increased employee compensation, partially offset by a decrease in in-licensing and upfront milestone payments of $4.5 million.
Liquidity and Capital Resources Our primary source of liquidity is cash generated from operations, available cash and borrowings under debt financing arrangements, including $285.9 million of available capacity on our New Revolving Credit Facility as of December 31, 2022, as defined in Note 16. Debt .
Selling, General, and Administrative AvKARE SG&A expense for the year ended December 31, 2023 increased 3.1% as compared to the prior year primarily due to higher employee compensation. Liquidity and Capital Resources Our primary source of liquidity is cash generated from operations, available cash and borrowings under debt financing arrangements (as defined and described in Note 16.
Overall, the increase of $31.8 million from the prior year was primarily due to a $22.1 million increase in interest expense as a result of higher rates on our variable rate debt and a $12.0 million increase in net foreign exchange losses related to the Indian rupee and the Euro.
The increase was primarily driven by a $52.3 million increase in net interest expense as a result of higher rates on our variable rate debt and a $40.8 million loss on refinancing the Term Loan Due 2025 and amending the New Revolving Credit Facility.
During the years ended December 31, 2022 and 2021, we made tax distributions of $10.6 million and $53.5 million, respectively, to Amneal's members. Cash Balances At December 31, 2022, our cash and cash equivalents consist of cash on deposit and highly liquid investments. A portion of our cash flows are derived outside the U.S.
Subsequent to the Reorganization, we are no longer obligated to make tax distributions to the Members. There was no liability for tax distributions payable to the Members as of December 31, 2023 and 2022. Cash Balances At December 31, 2023, our cash and cash equivalents consist of cash on deposit and highly liquid investments.
Year-over-year, inflation increased cost of goods sold by approximately $17.0 million, primarily related to freight charges. Gross profit for the year ended December 31, 2022 was $784.7 million (35.5% of net revenue) as compared to gross profit of $769.0 million (36.7% of net revenue) for the prior year.
Cost of Goods Sold and Gross Profit Specialty cost of goods sold for the year ended December 31, 2023 increased 17.5% as compared to the prior year primarily due to an increase in volumes and a $25.0 million increase in marketed product intangible asset impairment charges primarily related to a reduction in promotional focus on LYVISPAH™ .
Research and Development Specialty R&D expense for the year ended December 31, 2022 decreased 35.2% or $15.3 million, compared to the prior year, driven by lower project costs as our IPX203 study wound down and a decrease in in-licensing and upfront milestone payments of $2.9 million. 56 Table of Contents AvKARE The following table sets forth the results of operations for our AvKARE segment (dollars in thousands): Years Ended December, 31 Increase (Decrease) 2022 2021 $ % Net revenue $ 406,110 $ 349,012 $ 57,098 16.4% Cost of goods sold 349,133 282,874 66,259 23.4% Gross profit 56,977 66,138 (9,161) (13.9)% Selling, general and administrative 53,659 57,918 (4,259) (7.4)% Acquisition, transaction-related and integration expenses — 1,422 (1,422) (100.0)% Operating income (loss) $ 3,318 $ 6,798 $ (3,480) (51.2)% Net Revenue AvKARE net revenue for the year ended December 31, 2022 increased 16.4%, or $57.1 million, compared to the prior year, driven by growth in our distribution channel.
AvKARE The following table sets forth the results of operations for our AvKARE segment (dollars in thousands): Years Ended December, 31 Increase 2023 2022 $ % Net revenue $ 531,749 $ 406,110 $ 125,639 30.9% Cost of goods sold 444,896 349,133 95,763 27.4% Gross profit 86,853 56,977 29,876 52.4% Selling, general and administrative 55,341 53,659 1,682 3.1% Operating income $ 31,512 $ 3,318 $ 28,194 849.7% Net Revenue AvKARE net revenue for the year ended December 31, 2023 increased 30.9% as compared to the prior year primarily driven by growth in our distribution and government channels resulting from new product introductions.
Research and Development R&D expenses for the year ended December 31, 2022 decreased 3.1%, or $6.2 million, compared to the prior year .
Research and Development R&D expenses for the year ended December 31, 2023 decreased 16.2% from the prior year primarily due to lower project spend of $17.3 million, a decrease in in-licensing and upfront milestone payments of $2.5 million and operating efficiencies in our infrastructure.
IPR&D impairment charges of $0.7 million in the prior year were related to one Generics asset which experienced a delay in its expected launch date, resulting in significantly lower than expected future cash flows.
In-Process Research and Development Impairment Charges In process research and development (“IPR&D”) impairment charges of $30.8 million for the year ended December 31, 2023 were related to one Generics asset and one Specialty asset, both of which experienced adverse clinical trials results in the fourth quarter of 2023 and resulted in significantly lower than expected future cash flows.
Total Other Expense, Net Total other expense, net was $153.2 million for the year ended December 31, 2022, as compared to $121.4 million in the prior year.
Total Other Expense, Net Total other expense, net increased 59.7% for the year ended December 31, 2023.
We expect an inflationary impact of approximately $15.0 million for the year ending December 31, 2023. Notwithstanding our estimates, rising inflationary pressures due to higher input costs, including higher material, transportation, labor and other costs, could exceed our expectations and may adversely impact our operating results in future periods.
We expect an inflationary impact of approximately $15.0 million to $20.0 million for the year ending December 31, 2024.
As a result of the foregoing, our obligations under the tax receivable agreement could have a substantial negative impact on our liquidity. For further information, refer to Item 1A. Risk Factors and Note 7. Income Taxes .
The timing and amount of payments may also be accelerated under certain conditions, such as a change of control or other early termination event, which could give rise to our obligation to make TRA payments in advance of tax benefits being realized. For further information, refer to Item 1A. Risk Factors and Note 7. Income Taxes .