For more than 30 years Shufeng Jiedu has been successfully used in China for viral respiratory diseases. Since 2005, this TCM formulation has also been approved in China as a drug for the treatment of upper respiratory tract infections such as influenza and SARS. This formulation has also proven successful with Covid-19.

Reference substances are an integral part of any analytical procedure and are especially existential in the pharmaceutical context as a general reference in the GMP environment.

Medicinal plants have a mucoprotective effect, i.e. they are able to inhibit the entry of viruses and reduce RNA replication and virus titres. For specific recipes, even the production of antibodies has been noted.

Traditional Japanese Kampo medicine recipes constitute an interesting option for pragmatic use in medical practice, among other things as prophylaxis and follow-up treatment for infectious diseases.