Recycling of pharmaceutical dregs in pharmaceutical plants can be done by contacting a local pharmaceutical dregs recycling company or organization. These companies or organizations usually have the relevant qualifications and experience to handle and utilize the dregs in a compliant manner. Specific recycling methods and contact information can be obtained by consulting the relevant person in charge of the local pharmaceutical factory. When choosing a recycling company or organization, you need to pay attention to whether it has legal environmental and safety requirements and has a good reputation and word of mouth. This will ensure that the pharmaceutical residue is handled in a reasonable and compliant manner to avoid harming the environment and human health.