I found this drug while perusing the internet. It has been succesfully used to treat patients who were in a comatose state from a brain injury. Although it hasn't been researched for mtbi and these patients were all in the acute stage, the rule of thumb is that most anything that is good for a severe tbi will most undoubtedly be good for a mild tbi. Check it out.

http://www.neurohealing.com/NH001Pro...ryJune2009.pdf