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Details

Stereochemistry ABSOLUTE
Molecular Formula C19H24O3
Molecular Weight 300.3921
Optical Activity UNSPECIFIED
Defined Stereocenters 5 / 5
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of TESTOLACTONE

SMILES

C[C@]12CC[C@H]3[C@@H](CCC4=CC(=O)C=C[C@]34C)[C@@H]1CCC(=O)O2

InChI

InChIKey=BPEWUONYVDABNZ-DZBHQSCQSA-N
InChI=1S/C19H24O3/c1-18-9-7-13(20)11-12(18)3-4-14-15(18)8-10-19(2)16(14)5-6-17(21)22-19/h7,9,11,14-16H,3-6,8,10H2,1-2H3/t14-,15+,16+,18+,19+/m1/s1

HIDE SMILES / InChI

Description

Testolactone (Teslac brand name) is an anti-cancer agent, which was used as adjunctive therapy in the palliative treatment of advanced or disseminated breast cancer. The mechanism of testolactone action is reported to be related to the inhibition of aromatase enzymatic activity. Testolactone is no longer available in the USA.

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency

Conditions

ConditionModalityTargetsHighest PhaseProduct
Palliative
TESLAC

Cmax

ValueDoseCo-administeredAnalytePopulation
1 μg/mL
500 mg 4 times / day steady-state, oral
TESTOLACTONE plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
3.5 μg × h/mL
500 mg 4 times / day steady-state, oral
TESTOLACTONE plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
1.7 h
500 mg 4 times / day steady-state, oral
TESTOLACTONE plasma
Homo sapiens

Overview

CYP3A4CYP2C9CYP2D6hERG

OverviewOther

Other InhibitorOther SubstrateOther Inducer

Drug as perpetrator​

PubMed

Sample Use Guides

In Vivo Use Guide
The recommended oral dose is 250 mg qid.
Route of Administration: Oral
In Vitro Use Guide
Unknown