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Details

Stereochemistry ABSOLUTE
Molecular Formula C23H34O4
Molecular Weight 374.5137
Optical Activity UNSPECIFIED
Defined Stereocenters 8 / 8
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ROSTAFUROXIN

SMILES

C[C@]12CC[C@H]3[C@@H](CC[C@@H]4C[C@@H](O)CC[C@]34C)[C@@]1(O)CC[C@]2(O)C5=COC=C5

InChI

InChIKey=AEAPORIZZWBIEX-DTBDINHYSA-N
InChI=1S/C23H34O4/c1-20-8-5-17(24)13-15(20)3-4-19-18(20)6-9-21(2)22(25,10-11-23(19,21)26)16-7-12-27-14-16/h7,12,14-15,17-19,24-26H,3-6,8-11,13H2,1-2H3/t15-,17+,18+,19-,20+,21-,22+,23+/m1/s1

HIDE SMILES / InChI
Rostafuroxin (PST 2238) is a digitoxygenin derivative, which selectively displaces ouabain from the Na ,K -ATPase receptor. PST 2238, at concentrations up to 10−4 M, did not show any significant interaction with a- and b-adrenergic, D1, D2, D3, 5-HT1, 5-HT2, H1, H2, M1, M2, A1, A2, Ca2 , Na , or K channel–associated receptors, AT1, AT2, ETa, ETb, GABA, thromboxane, vasopressin, angiotensin II, or the steorid-hormone receptors (androgen, progestogen, estrogen and mineralocorticoid), confirming that PST 2238 is specific for Na ,K -ATPase. Rostafuroxin has been developed in an attempt to unravel the contribution of mutated adducin and endogenous ouabain in the pathogenesis of hypertension. The compound lowered blood pressure in Milan hypertensive rats and humans. Rostafuroxine had been in phase II clinical trials for the treatment of hypertension. Following adverse events in Rostafuroxin group were described: dizziness, headache, upper respiratory tract infections, high blood pressure.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Target ID: Sodium-potassium adenosine triphosphatase
1.5 µM [IC50]
Conditions
Doses

Doses

DosePopulationAdverse events​
0.05 mg multiple, oral
Studied dose
Dose: 0.05 mg
Route: oral
Route: multiple
Dose: 0.05 mg
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
Disc. AE: hypertension...
AEs leading to
discontinuation/dose reduction:
hypertension (1 pt)
Sources:
0.15 mg 1 times / day multiple, oral
Studied dose
Dose: 0.15 mg, 1 times / day
Route: oral
Route: multiple
Dose: 0.15 mg, 1 times / day
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
Disc. AE: hypertension...
AEs leading to
discontinuation/dose reduction:
hypertension (3 patients)
Sources:
0.5 mg 1 times / day multiple, oral
Studied dose
Dose: 0.5 mg, 1 times / day
Route: oral
Route: multiple
Dose: 0.5 mg, 1 times / day
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
Disc. AE: hypertension...
AEs leading to
discontinuation/dose reduction:
hypertension (2 patients)
Sources:
AEs

AEs

AESignificanceDosePopulation
hypertension 1 pt
Disc. AE
0.05 mg multiple, oral
Studied dose
Dose: 0.05 mg
Route: oral
Route: multiple
Dose: 0.05 mg
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
hypertension 3 patients
Disc. AE
0.15 mg 1 times / day multiple, oral
Studied dose
Dose: 0.15 mg, 1 times / day
Route: oral
Route: multiple
Dose: 0.15 mg, 1 times / day
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
hypertension 2 patients
Disc. AE
0.5 mg 1 times / day multiple, oral
Studied dose
Dose: 0.5 mg, 1 times / day
Route: oral
Route: multiple
Dose: 0.5 mg, 1 times / day
Sources:
unhealthy
Health Status: unhealthy
Sex: M+F
Food Status: UNKNOWN
Sources:
Sourcing

Sourcing

Vendor/AggregatorIDURL
PubMed

PubMed

TitleDatePubMed
Adducin- and ouabain-related gene variants predict the antihypertensive activity of rostafuroxin, part 2: clinical studies.
2010-11-24
PST 2238: A new antihypertensive compound that modulates Na,K-ATPase in genetic hypertension.
1999-03
PST2238: a new antihypertensive compound that antagonizes the long-term pressor effect of ouabain.
1998-04
Role of ouabain-like compound in the regulation of transmembrane sodium and potassium gradients in rats.
1997-09
17 beta-(3-furyl)-5 beta-androstane-3 beta, 14 beta, 17 alpha-triol (PST 2238). A very potent antihypertensive agent with a novel mechanism of action.
1997-05-23
Patents

Sample Use Guides

0.05, 0.15, 0.5, 1.5, or 5.0 mg/day
Route of Administration: Oral
To assess the long-term effect of low concentrations of PST 2238 on the Na+ -K+ pump activity, NRK cells were incubated with PST 2238 for 5 d. PST 2238 stimulated the pump at 10(−6) M (26%, n.s.) and 10(−5) M (27%, p < 0.05).
Name Type Language
21,23-EPOXY-24-NOR-14.BETA.,5.BETA.-CHOLA-20,21-DIENE-3.BETA.,14,17.ALPHA.-TRIOL
Preferred Name English
ROSTAFUROXIN
INN  
INN  
Official Name English
rostafuroxin [INN]
Common Name English
Classification Tree Code System Code
NCI_THESAURUS C270
Created by admin on Mon Mar 31 18:40:14 GMT 2025 , Edited by admin on Mon Mar 31 18:40:14 GMT 2025
Code System Code Type Description
PUBCHEM
153976
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CAS
156722-18-8
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WIKIPEDIA
Rostafuroxin
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ChEMBL
CHEMBL2107775
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EPA CompTox
DTXSID20870040
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SMS_ID
300000037040
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MESH
C106263
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FDA UNII
P848LCX62B
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DRUG BANK
DB12350
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INN
8391
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NCI_THESAURUS
C90733
Created by admin on Mon Mar 31 18:40:14 GMT 2025 , Edited by admin on Mon Mar 31 18:40:14 GMT 2025
PRIMARY