Molecules / Phentermine

Phentermine API manufacturers

CAS 122-09-8 ATC A08AA01 Updated 9 July 2026
6
manufacturers with an active filing 6 of them hold a US DMF or a CEP
11
shortage records on file across 1 countries
84
finished-dose makers across 18 regulators
Showing 6 of 6 manufacturers This list is ranked on evidence. Placement cannot be purchased.

Ranked API manufacturers

01

Zydus Lifesciences

India
Makes the APIFinished dose
Credentials confirmed against the regulator files on 25 July 2026

Holds one active US DMF for phentermine, filing since 2012. Its 2025 FDA inspection closed as VAI, and its GMP is recognised in 25 markets.

US DMF
1 active
CEP
None on file
Last FDA inspection
2025 · VAI
GMP recognised in
25 markets
How this listing is sourced FDA, List of Drug Master Files
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02

Symed Labs

India
Makes the API
Credentials confirmed against the regulator files on 25 July 2026

Holds 2 active US DMFs for phentermine, filing since 2011. Its 2025 FDA inspection closed as VAI, and its GMP is recognised in 2 markets.

US DMF
2 active
CEP
None on file
Last FDA inspection
2025 · VAI
GMP recognised in
2 markets
How this listing is sourced FDA, List of Drug Master Files
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03

Siegfried

United States
Makes the API
Credentials confirmed against the regulator files on 25 July 2026

Holds one active US DMF for phentermine, filing since 1979. Its 2025 FDA inspection closed as NAI.

US DMF
1 active
CEP
None on file
Last FDA inspection
2025 · NAI
GMP recognised in
Not established
How this listing is sourced FDA, List of Drug Master Files
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04

Malladi Drugs & Pharmaceuticals

India
Makes the API
Credentials confirmed against the regulator files on 25 July 2026

Holds one active US DMF for phentermine, filing since 2023. Its 2025 FDA inspection closed as VAI, and its GMP is recognised in 2 markets.

US DMF
1 active
CEP
None on file
Last FDA inspection
2025 · VAI
GMP recognised in
2 markets
How this listing is sourced FDA, List of Drug Master Files
View profile
05

Olon

Italy
Makes the API
Credentials confirmed against the regulator files on 25 July 2026

Holds one active US DMF for phentermine, filing since 2001. Its 2025 FDA inspection closed as VAI, and its GMP is recognised in 3 markets.

US DMF
1 active
CEP
None on file
Last FDA inspection
2025 · VAI
GMP recognised in
3 markets
How this listing is sourced FDA, List of Drug Master Files
View profile
06

Chemische Fabrik Berg

Germany
Makes the API
Credentials confirmed against the regulator files on 25 July 2026

Holds one active US DMF for phentermine, filing since 2001. Its 2024 FDA inspection closed as VAI.

US DMF
1 active
CEP
None on file
Last FDA inspection
2024 · VAI
GMP recognised in
Not established
How this listing is sourced FDA, List of Drug Master Files
View profile

3 more manufacturers hold filings for phentermine

The names are listed below. Ask Fred about the filings, inspection history and GMP certificates on record for each manufacturer.

Malladi Drugs & PharmaceuticalsOlonChemische Fabrik Berg
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Contract manufacturers (3)

Chemische Fabrik Berg Germany Alpex Pharma Switzerland Malladi Drugs And Pharmaceuticals India

Contract manufacturers make to order rather than holding their own filing for this molecule.

Finished-dose makers (17)

Epic Pharma United States Elite Laboratories United States Gsk Vaccines United Kingdom Teva Israel Aurolife Pharma United States Maco Productions France Polygen Pharmaceuticals United States Chartwell RX United States Lupin India Sandoz Switzerland Ferndale Laboratories United States Douglas Manufacturing New Zealand Eurodrug Laboratories Netherlands Lannett United States Laboratorios Feltrex Dominican Republic Watson Laboratories United States KVK-Tech United States

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

Who makes phentermine?

Ask Fred which manufacturers are on record for phentermine and what filings they hold.

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Also on this molecule

Shortages 11 Recalls 3 Finished dose 17 Contract mfrs 3