Xenazine (tetrabenazine tablets, from Prestwick) has been FDA approved for the treatment of chorea associated with Huntington’s disease (HD).
This approval was based on results from a double-blind, placebo-controlled study which found that Xenazine significantly reduced patients’
chorea burden and improved global outcome scores.
Xenazine, a monoamine depletor, is expected to be available in 2008 in 12.5mg and 25mg dosage strengths.