A single 20mg pill of the drug, called Dimebon, taken three times a day, appears to be twice as effective in improving cognitive performance and preventing deterioration in memory as existing drugs.
Dimebon was used as an antihistamine in Russia 20 years ago, but it was withdrawn from the market when newer drugs superseded it.
Since September, 16 major drug companies have inked deals with the Trump administration to lower prices....
