phentermine hydrochloride
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
37 FDA-registered drug labelers
A-S Medication Solutions
Asclemed USA, Inc.
Aurolife Pharma, LLC
Bryant Ranch Prepack
Calvin Scott & Co., Inc.
Catalent Pharma Solutions, LLC
Chartwell RX, LLC
Chemische Fabrik Berg GmbH
DIRECT RX
Dr.Reddys Laboratories Inc
Elite Laboratories, Inc.
Epic Pharma, LLC
Fagron Inc
KVK-TECH, INC.
LETCO MEDICAL, LLC
Malladi Drugs & Pharmaceuticals Limited
Martek Pharmacal Co.
Medisca Inc.
Northwind Pharmaceuticals, LLC
NuCare Pharmaceuticals,Inc.
Olon SpA
PD-Rx Pharmaceuticals, Inc.
POLYGEN PHARMACEUTICALS INC.
Prasco Laboratories
Precision Dose Inc.
Preferred Pharmaceuticals Inc.
Professional Compounding Centers of America
Professional Compounding Centers of America dba PCCA
Proficient Rx LP
Siegfried USA, LLC
Solco Healthcare U.S., LLC
Sun Pharmaceutical Industries, Inc.
SUNRISE PHARMACEUTICAL, INC.
Symed Labs Limited
TAGI Pharma, Inc.
Teva Pharmaceuticals, Inc.
Vivus LLC
Why It Matters
Sectors
Health
Downstream Uses
Appears in 8 drug and cosmetic product listings (FDA).
- •Phentermine Hydrochloride
- •Phentermine HCL C-IV
- •Phentermine
- •Phentermine HCL
- •Lomaira
- •Phentermine and Topiramate Extended-Release
- •Qsymia
- •phentermine and topiramate
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No Shortage
Shortage History
Each row is a separate manufacturer's FDA shortage filing — not a timeline for the drug as a whole. Multiple "current" entries are normal: each manufacturer/NDC files independently. Status reflects the manufacturer's report; reason describes their supply situation (Available, Unavailable, or to be discontinued).
to be discontinued
Phentermine Hydrochloride Tablet
06/13/2025Chemical Identity
CAS1197-21-3
PubChem CID70969
DTXSIDDTXSID20152550
FormulaC10H16ClN
Mol. Weight185.69 g/mol
SMILESCC(C)(CC1=CC=CC=C1)N.Cl
Data Sources
709692026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/phentermine hydrochloride/cids/JSON
Archive: data/sources/pubchem_name/phentermine hydrochloride.json
CAS 1197-21-32026-04-25
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json
CAS 1197-21-32026-06-13
https://api.fda.gov/drug/shortages.json
Archive: data/sources/fda/shortages/shortages.json