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 Polyene Phosphatidyl choline approved in United States?
Yes. FDA has authorised it.
Who is the marketing authorisation holder for Polyene Phosphatidyl choline in United States?
Zhejiang Hisun Pharmaceutical Co. Ltd. is the originator. The local marketing authorisation holder may differ — check the official source linked above.