Has any futher research been done on Clioquinol since 2009 for treatment of PD in conjunction with Vitamin B12? Is it still being used? Is it an over the counter medication in the UK and the US?

I recall being able to buy and use Clioquinol for treatment of gut inections by all manners of pathogens in India. This drug was later withdrawn after reports from Japan that it caused damage to retinal nerves.

See this:

http://www.patentstorm.us/patents/59...scription.html

Thanks

Kenki