FDA warning letter · Drugs

Zhao Qing Longda Biotechnology Co. Ltd.

Issued · Posted by FDA

Selected passages from the FDA letter

Quoted FDA text from the published dataset. These selected excerpts are not the complete letter.

Passage 1

On March 17, 2023, the FDA sent an electronic request for records and other information pursuant to section 704(a)(4) of the Federal Food, Drug, and Cosmetic Act (FD&C Act), 21 U.S.C. 374(a)(4), to the contact email address provided in your registration file. This request went unanswered.

Passage 2

On April 19, 2023, you responded stating that you were “not prepared to allow the FDA to audit and inspect” your firm.