sildenafil citrate
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
85 FDA-registered drug labelers
A-S Medication Solutions
Actavis Pharma, Inc.
Advagen Pharma Ltd
Advanced Rx of Tennessee, LLC
Advanced Rx Pharmacy of Tennessee, LLC
Ajanta Pharma USA Inc.
Almon Healthcare Private Limited
American Health Packaging
Amneal Pharmaceuticals LLC
Amneal Pharmaceuticals NY LLC
Amneal Pharmaceuticals of New York LLC
Amoli Organics (A Division of Umedica Laboratories Pvt.Ltd.)
ANI Pharmaceuticals, Inc.
Aphena Pharma Solutions - Tennessee, LLC
Appco Pharma LLC
Ascend Laboratories, LLC
Asclemed USA, Inc.
Aurobindo Pharma Limited
AvKARE
AvPAK
AX Pharmaceutical Corp.
Azico Biophore India Private Limited
BluePoint Laboratories
Bostal LLC
Bryant Ranch Prepack
Cadila Pharmaceuticals Limited
Camber Pharmaceuticals, Inc.
Cardinal Health 107, LLC
Chartwell RX, LLC
CIPLA USA INC.,
Cutyx Research LLP
DARMERICA, LLC
DIRECT RX
Eugia US LLC
Evereen Shanghai Biotechnology Ltd.
Exelan Pharmaceuticals, Inc.
Fagron Inc
Haleos Labs Limited
HEC Pharm USA Inc.
Hetero Drugs Limited
IBSA Pharma Inc.
Jubilant Cadista Pharmaceuticals Inc.
KALCHEM INTERNATIONAL INC
LETCO MEDICAL, LLC
Lupin Pharmaceuticals, Inc.
Macleods Pharmaceuticals Limited
Maithili Life Sciences Private Limited
Major Pharmaceuticals
Matrix Pharmacorp Private Limited
MEDISCA Inc.
Modavar Pharmaceuticals LLC
MSN Organics Private Limited
Mylan Pharmaceuticals Inc.
Northstar Rx LLC
Northwind Health Company, LLC
Novadoz Pharmaceuticals LLC
NuCare Pharmaceuticals, Inc.
PD-Rx Pharmaceuticals, Inc.
PFIZER LABORATORIES DIV PFIZER INC
Pharma Source Direct, Inc.
Preferred Pharmaceuticals Inc.
Professional Compounding Centers of America dba PCCA
Proficient Rx LP
Quallent Pharmaceuticals Health LLC
Raks Pharma Pvt. Limited
REMEDYREPACK INC.
Reyoung Corporation
SCH Global Services Private Limited
SHOOLIN PHARMA CHEM LLP
SMS Pharmaceuticals Limited
Spectrum Laboratory Products, Inc.
Supriya Lifescience Limited
Teva Pharmaceuticals USA, Inc.
Torrent Pharmaceuticals Limited
TruPharma LLC
Viatris Specialty LLC
Virtus Pharmaceuticals, LLC
Willow Birch Pharma, Inc.
Willow Birch Pharma, LLC
Xenex Laboratories Inc
XLCARE Pharmaceuticals INC.
Yaral Pharma Inc.
ZAKLADY FARMACEUTYCZNE POLPHARMA S A
Zydus Lifesciences Limited
Zydus Pharmaceuticals (USA) Inc.
Why It Matters
Sectors
Health
Downstream Uses
Appears in 5 drug and cosmetic product listings (FDA).
- •Sildenafil Citrate
- •Vybrique
- •Sildenafil
- •Viagra
- •Revatio
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 FDA shortage records
Chemical Identity
CAS171599-83-0
PubChem CID135413523
DTXSIDDTXSID4046076
FormulaC28H38N6O11S
Mol. Weight666.7 g/mol
SMILESCCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C.C(C(=O)O)C(CC(=O)O)(C(=O)O)O
Data Sources
1354135232026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/sildenafil citrate/cids/JSON
Archive: data/sources/pubchem_name/sildenafil citrate.json
CAS 171599-83-02026-04-25
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json
bulk match2026-04-07
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json