1, open a browser and enter keywords such as "national food and drug query portal" or "china food and drug administration" to search.

2. Find the official website in the search results and enter the website. Generally speaking, the official website will have a clear logo.

3. Find "Food and Drug Inquiry" or similar options on the homepage or navigation bar of the website, and click to enter the inquiry page.

4. Select the corresponding query method according to the content to be queried.

5. Enter the key information to be queried according to the prompt, such as drug name, approval number and manufacturer, and click the query button.

6. Wait for the query result to appear. Generally speaking, the query results will include the basic information of the inquired food and drug, manufacturer information, inspection results and so on.

Reasons why the national food and drug inquiry cannot be found:

1, the database query of the Food and Drug Administration lags behind, because some newly applied license data have not been updated on the website of the Food and Drug Administration, and of course the Food and Drug Administration will also enter it for some time.

2. Fake goods. If the registered manufacturer and drug name can't be found on the website of the Food and Drug Administration, both prescription drugs and over-the-counter drugs are fake goods, but pay attention to the category of inquiry, so as not to make a mistake when inquiring.

To sum up, the information provided by the national food and drug inquiry portal is for reference only. When purchasing food and drugs, you still need to choose carefully, and pay attention to the production date, shelf life and other information of the products to ensure the purchase of safe and reliable products. At the same time, if you find any food and drug safety problems, you can report them to the local food and drug supervision department to safeguard your rights and interests.

Legal basis:

Food Safety Law of the People's Republic of China

Article 31

The health administrative department of the people's government at or above the provincial level shall publish the national standards, local standards and enterprise standards for food safety formulated and filed on its website for the public to consult and download for free.

The health administrative department of the people's government at or above the county level shall, jointly with the relevant departments, give timely guidance and answers to the problems in the implementation of food safety standards.