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In pharmacology, a capsule is a common oral dosage form for medicine. It's typically a shell, most often made of hard gelatin, designed to enclose and deliver a drug. These shells can be filled with powders, granules, pellets, or even liquids.1

Capsules serve several purposes:
* Ease of Administration: They help mask unpleasant tastes of medications.1
* Manufacturing: They often contain inert ingredients that aid in the manufacturing process.1
* Delivery: They are designed to release the medication in a predictable and reliable way for a therapeutic response.1

Common synonyms for capsules include pills, tablets, and lozenges.23

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