There was also a study out of Yale showing effectiveness with a combination of guanfacine and N-acetylcysteine (NAC), an anti-oxidant also used for the treatmen

There was also a study out of Yale showing effectiveness with a combination of guanfacine and N-acetylcysteine (NAC), an anti-oxidant also used for the treatment of TBI. https://medicine.yale.edu/news-article/potential-new-treatment-for-brain-fog-in-long-covid-patients/ https://medicine.yale.edu/news-article/potential-new-treatme...