The meaning of drug standard number letter code

The format of the drug approval number is: "National Drug Approval" + 1 letter + 8 digits. The format of the drug approval number for trial production is: "National Drug Approval" + 1 letter + 8 digits. The letter "H" is used for chemical drugs, the letter "Z" is used for traditional Chinese medicine, the letter "B" is used for health care drugs that have been rectified by the State Food and Drug Administration, the letter "S" is used for biological products, and the letter "T" is used for in vitro chemical diagnostic reagents. Use the letter "F" for excipients, and use the letter "J" for imported subpackaged drugs. The first and second digits are the source codes of the original approval number, among which "10" represents drugs approved by the original Ministry of Health, and "19" and "20" '' represents drugs approved by the State Food and Drug Administration before January 1, 2002. The other first two digits represent drugs approved by the original provincial health administrative departments. The first two digits of the provincial administrative division code (attached) are used. 2 digits. The 3rd and 4th digits are the last two digits of the year in which the approval number was renewed, but the approval number from the Ministry of Health and the State Food and Drug Administration still uses the last two digits of the original number. The 5th to 8th digits of the number are the sequence number.

Source: Yaozhi.com Drug Standards Full-text Database