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http://www.newscientist.com/channel/health/cancer/dn10971-cheap-safe-drug-kills-most-cancers.html
It's an older drug used for other maladies, it's already off patent and sold as a generic. It can never be patented again. And there lays the rub, no profit in it for drug companies.It sounds almost too good to be true: a cheap and simple drug that kills almost all cancers by switching off their “immortality”. The drug, dichloroacetate (DCA), has already been used for years to treat rare metabolic disorders and so is known to be relatively safe.