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To hand fill capsules at the prescription counter, the pharmacist generally uses the "punch" method. The ingredients are triturated to the same particle size and then mixed by geometric dilution. The powder is placed on a powder paper or ointment slab and smoothed with a spatula to a height approximately half the length of the capsule body. The base of the capsule is held vertically and the open end is repeatedly pushed or "punched" into the powder until the capsule is filled; the cap is then replaced to close the capsule. Each filled capsule is weighed using an empty capsule as a counterweight. Powder is added or removed until the correct weight has been placed in the capsule. The filled capsule is tapped so that no air spaces are visible within the contents.

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11y ago
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Q: What is the punch method?
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