phentermine
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
1 FDA-registered drug labeler
Siegfried USA, LLC
Why It Matters
Sectors
Health
Downstream UsesNo data available
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
CAS122-09-8
PubChem CID4771
DTXSIDDTXSID9023461
FormulaC10H15N
Mol. Weight149.23 g/mol
SMILESCC(C)(CC1=CC=CC=C1)N
Data Sources
47712026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/phentermine/cids/JSON
Archive: data/sources/pubchem_name/phentermine.json
CAS 122-09-82026-04-24
https://www.epa.gov/tsca-inventory
Archive: data/sources/tsca/tsca_inventory.csv
CAS 122-09-82026-06-13
https://api.fda.gov/drug/shortages.json
Archive: data/sources/fda/shortages/shortages.json