[High-frequency hot topics of the year].
From 2021 to 2023, the top 20 keywords with the highest frequency in the discipline of "pharmacy" are: rational drug use;Adverse drug reactions;Adverse reactions;Clinical Pharmacist;Antimicrobials;Pharmacy Services;High Performance Liquid Chromatography;Pharmacy Monitoring;Security;Children;Blood concentrations;related substances;Content determination;Pharmacokinetics;Clinical Trials;Synthetic;Pharmacokinetics;Quality Control;Influencing factors;Adverse drug reactions. Among them, the keywords of "rational drug use, adverse drug reactions, adverse reactions, clinical pharmacists, and antimicrobial drugs" have the highest popularity over the years, with a frequency of more than 87, as shown in Figure 1 below.
Figure 1"Pharmacy"Subject: 2021-2023 high-frequency topics.
The detailed distribution frequency of hot topics over the years is shown in Table 1 below.
Table I"Pharmacy"The distribution frequency of high-frequency topics in the calendar year from 2021 to 2023.
Data**: Wenyuan Zhige**Writing Assistant).
From 2021 to 2023, the top 20 hot topics in the discipline of "Pharmacy" involve a total of 212,760 academic articles, which are distributed in Table 2 below.
Table II"Pharmacy"Distribution of high-frequency topics from 2021 to 2023.
Data**: Wenyuan Zhige**Writing Assistant).
Topic annual distribution trend].
From 2021 to 2023, the annual distribution frequency of high-frequency topics in the discipline of "Pharmacy" is as follows.
Table IV. 
Table III"Pharmacy"The annual distribution trend of hot topics from 2021 to 2023.
Data**: Wenyuan Zhige**Writing Assistant).
Table IV"Pharmacy"The annual popularity distribution trend of hot topics in the discipline from 2021 to 2023.
Data**: Wenyuan Zhige **Assistant).
From 2021 to 2023, among the top 20 hot topics in the discipline of "Pharmacy", the frequency of keywords such as "rational drug use, adverse drug reactions, adverse reactions, clinical pharmacists, antimicrobial drugs, pharmaceutical services, high performance liquid chromatography, pharmaceutical monitoring, safety, children, blood drug concentration, related substances, content determination, pharmacokinetics, clinical trials, synthesis, pharmacokinetics, quality control, influencing factors, adverse drug reactions" and other keywords showed an overall downward trend, and "rational drug use, adverse drug reactions, Keywords such as "adverse reactions" fluctuated greatly, and the keyword "rational drug use" was at the peak in 2021 and fell to the trough in 2023;The keyword "adverse drug reactions" peaked in 2021 and fell to the trough in 2023;The keyword "adverse reactions" peaked in 2021 and fell to the trough in 2022;The distribution curve is shown in Fig.
2. Figure 3:
Figure II"Pharmacy"Frequency distribution curve of hot topics from 2021 to 2023
Figure III"Pharmacy"The distribution curve of hot topics from 2021 to 2023.
Analysis of topic co-occurrence relationship].
Topic co-occurrence refers to the phenomenon of two topics appearing in the same article at the same time. The frequency of co-occurrence of two topics reflects the strength of their co-occurrence.
From 2021 to 2023, the overall co-occurrence of high-frequency topics in the discipline of "pharmacy" is shown in Figure 4 below.
Figure IV"Pharmacy"The co-occurrence relationship of hot topics in the discipline from 2021 to 2023.
The details of the co-occurrence frequency of each topic are shown in Table 5 below.
Table V"Pharmacy"The frequency of hot topics in the discipline from 2021 to 2023.
Data**: Wenyuan Zhige**Writing Assistant).
Among them, the 10 groups of topics with the highest frequency are combined in Table 6 below.
Table VI"Pharmacy"Keywords pairs of high-frequency co-occurrence topics from 2021 to 2023.
Data**: Wenyuan Zhige**Writing Assistant).
Topic word cloud map distribution].
Figure 5 Distribution of topic word clouds (data**: Wenyuan Zhige**Writing Assistant).
Topic distribution in the subject].
Figure 6 Distribution of topics in the subject (data**: Wenyuan Zhige**Writing Assistant).