Ranked API manufacturers
Credentials confirmed against the regulator files on 25 July 2026
Holds one valid CEP for acetylcysteine, filing since 1985. Its 2022 FDA inspection closed as VAI.
Last FDA inspection
2022 · VAI
GMP recognised in
Not established
Credentials confirmed against the regulator files on 25 July 2026
Holds one active US DMF and one valid CEP for acetylcysteine, filing since 1999. Its 2023 FDA inspection closed as VAI, and its GMP is recognised in 1 market.
Last FDA inspection
2023 · VAI
GMP recognised in
1 markets
Credentials confirmed against the regulator files on 25 July 2026
Holds one active US DMF and one valid CEP for acetylcysteine, filing since 2008. Its 2025 FDA inspection closed as VAI.
Last FDA inspection
2025 · VAI
GMP recognised in
Not established
Holds one active US DMF for acetylcysteine, filing since 2025. Its 2025 FDA inspection closed as NAI.
Last FDA inspection
2025 · NAI
GMP recognised in
Not established
Credentials confirmed against the regulator files on 25 July 2026
Holds one active US DMF for acetylcysteine, filing since 2023. Its 2024 FDA inspection closed as NAI, and its GMP is recognised in 1 market.
Last FDA inspection
2024 · NAI
GMP recognised in
1 markets
06 Italy
Makes the APIFinished dose
Credentials confirmed against the regulator files on 25 July 2026
Holds one active US DMF for acetylcysteine, filing since 1983. Its 2022 FDA inspection closed as VAI, and its GMP is recognised in 1 market.
Last FDA inspection
2022 · VAI
GMP recognised in
1 markets
07 Taiwan
Makes the APIFinished dose
Credentials confirmed against the regulator files on 25 July 2026
Holds one valid CEP for acetylcysteine, filing since 2025. Its 2023 FDA inspection closed as NAI, and its GMP is recognised in 1 market.
Last FDA inspection
2023 · NAI
GMP recognised in
1 markets
Holds one active US DMF for acetylcysteine, filing since 2024. Its 2025 FDA inspection closed as VAI.
Last FDA inspection
2025 · VAI
GMP recognised in
Not established
Credentials confirmed against the regulator files on 25 July 2026
Holds one valid CEP for acetylcysteine, filing since 2025. Its 2021 FDA inspection closed as VAI.
Last FDA inspection
2021 · VAI
GMP recognised in
Not established
Credentials confirmed against the regulator files on 25 July 2026
Last FDA inspection
Not established
GMP recognised in
Not established
Credentials confirmed against the regulator files on 25 July 2026
Holds one active US DMF for acetylcysteine, filing since 2025.
Last FDA inspection
Not established
GMP recognised in
Not established
Credentials confirmed against the regulator files on 25 July 2026
Holds 2 valid CEPs for acetylcysteine, filing since 2024.
Last FDA inspection
Not established
GMP recognised in
Not established
Registered with DAV (Vietnam) for acetylcysteine. Its GMP is recognised in 6 markets.
Last FDA inspection
Not established
GMP recognised in
6 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile 14 Vietnam
Makes the APIFinished dose
Registered with DAV (Vietnam) for acetylcysteine. Its GMP is recognised in 2 markets.
Last FDA inspection
Not established
GMP recognised in
2 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile 15 Vietnam
Makes the APIFinished dose
Registered with DAV (Vietnam) for acetylcysteine. Its GMP is recognised in 2 markets.
Last FDA inspection
Not established
GMP recognised in
2 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile 16 Vietnam
Makes the APIFinished dose
Registered with DAV (Vietnam) for acetylcysteine. Its GMP is recognised in 1 market.
Last FDA inspection
Not established
GMP recognised in
1 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile 17 Vietnam
Makes the APIFinished dose
Registered with DAV (Vietnam) for acetylcysteine. Its GMP is recognised in 1 market.
Last FDA inspection
Not established
GMP recognised in
1 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile 18 Vietnam
Makes the APIFinished dose
Registered with DAV (Vietnam) for acetylcysteine. Its GMP is recognised in 1 market.
Last FDA inspection
Not established
GMP recognised in
1 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile 19 Vietnam
Makes the APIFinished dose
Registered with DAV (Vietnam) for acetylcysteine. Its GMP is recognised in 1 market.
Last FDA inspection
Not established
GMP recognised in
1 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile Registered with SFDA (Saudi Arabia) for acetylcysteine. Its GMP is recognised in 1 market.
Last FDA inspection
Not established
GMP recognised in
1 markets
How this listing is sourced Regulator filings, warehouse snapshot 9 July 2026
View profile 32 more manufacturers hold filings for acetylcysteine
The names are listed below. The filings, inspection history and GMP certificates behind
each one are available with a free account.
Open the full list with a free account Contract manufacturers (12)
Contract manufacturers make to order rather than holding their own filing for this
molecule.
Finished-dose makers (85)
How this list is built
The order is set by active filings weighted by regulator, inspection outcomes and their
recency, breadth of GMP recognition, and evidence of real exports, less any open risk flags.
Every factor appears on the card it produced.
Read the full method.
- Active US DMFs
- FDA, List of Drug Master Files
- Valid CEPs
- EDQM certificate database
- Inspection outcomes
- FDA inspection classifications
- GMP certificates
- EudraGMDP and national regulators