Tablets are common dosage forms in drugs. They can be divided into controlled release tablets, sustained release tablets and other types according to different preparation processes and drugs. What are the characteristics of different tablets and what are the requirements for tablet bottles? Controlled release tablets and sustained release tablets are actually relatively special pharmaceutical preparation technologies. The sustained-release tablet literally means slow release. It can be released slowly in the human body, maintain a certain blood concentration for a long time, play a relatively long-term role, and reduce the number of drug administration to a certain extent. Under the same treatment effect, ordinary tablets may need to be taken three or four times a day, while sustained-release tablets are usually given once or twice a day, which can facilitate patients to a certain extent and improve their compliance. For controlled release tablets, it can not only slow the drug releas