What is clarity? What are the quality requirements of injection besides clarity? This is not something that Baidu can make clear in a few words. This is the content of pharmacy. In fact, you should receive higher education in pharmacy and have a systematic and complete understanding of drug production. I found the network resources of the following courses on the Internet for your reference.
West China College of Pharmacy, Sichuan University-Chapter VI Injection
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Peking University Pharmaceutical University Lecture 7 Injection (2) Video Recording
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So how should the clarity be checked? What are the operational process requirements? Injection is the most likely to cause potential harm to patients and even life-threatening among all drugs, so the quality requirements of injection are the most stringent, so the Pharmacopoeia has detailed provisions on this. See the appendix of China Pharmacopoeia 2005 for details of injection.
In addition, the production of injection must be carried out in GMP workshop, so you must change clothes and do a good job of personal hygiene when entering GMP workshop, and every step of operation must be carried out in strict accordance with the production operation procedures. These operating procedures cannot be found in this Baidu knowledge center, and pharmaceutical companies must conduct strict job training for workers.
The quality of drugs is produced, not tested, so every step of drug production should be strictly controlled. Moreover, compulsory training and self-study before taking up the post are also one of the contents of quality control. Through learning, strengthen the awareness of drug quality and safety, and realize the importance of drug quality to patients' life safety, which is also the requirement of professional ethics.