1998 - 18 years ago: "....During 1998 the Australian government...

1998 - 18 years ago:

"....During 1998 the Australian government gave Novogen a $2.79m START grant to develop anti cancer compound NV-06....."

http://www.bioline.org.br/request?au99014

From the FDA:

mce-anchor2. How long is a patent granted for?

Patents expire 20 years from the date of filing

http://www.fda.gov/Drugs/DevelopmentApprovalProcess/ucm079031.htm

There would likely be no patent left on Phenoxodial/Idronoxil/NV-06 which explains things - 1998 (18 years ago!) Novogen mk 1 got taxpayer cash to help develop Phenoxodial/Idronoxil/NV-06 and at that time it had already been through previous pre-clinical action so I'd think it would be open now to anyone..