Adverse reaction reports describe suspected side effects. A report does not mean the drug caused the event — co-medications, underlying disease and coincidence all contribute.
Is Branched chain amino acid approved in United States?
Yes. FDA has authorised it.
Who is the marketing authorisation holder for Branched chain amino acid in United States?
Post Graduate Institute of Medical Education and Research, Chandigarh is the originator. The local marketing authorisation holder may differ — check the official source linked above.