What does the "punch method" refer to?

The "punch method" refers to a technique used to fill capsules with powdered ingredients. This method involves using a specific tool, often called a capsule punch, which allows a pharmacist or technician to compress the powder into the capsule to ensure it is packed properly. The punch method is particularly useful for achieving accuracy in the quantity of filling, which is crucial for dosage consistency. This technique can be effectively used in a pharmacy setting, especially when creating customized medications for patients.

The other techniques listed in the choices focus on different aspects of pharmaceutical practice. For instance, measuring liquid medications requires precise instruments like syringes or graduated cylinders, while creating emulsions involves combining water and oil phases with emulsifiers. Compounding ointments encompasses mixing and preparing topical medications for external use, using methods that may include blending and levigation rather than a specialized punch tool. Each of those processes serves distinct purposes in pharmacy practice, delineating them from the specific function of the punch method.