Some Classifications of Capsules
Capsules can be classified based on several criteria. Here are some common classifications of capsules:
Based on their composition: Capsules can be classified into two types based on their composition: hard capsules and soft capsules. Hard capsules are made of two pieces, the body, and the cap, that fit together and are usually made of gelatin. Soft capsules are made of a single piece and are typically made of a gelatin shell containing a liquid or semi-solid fill.
Based on their size: Capsules are available in a wide range of sizes, from very small to large. The size of a capsule is usually measured in terms of its capacity, which is the amount of fill that it can hold.
Based on their shape:
Capsules can be cylindrical or oblong, or they may be designed to have a specific shape, such as a bullet or a torpedo.
Based on their intended use: Capsules can be designed for oral or topical use. Oral capsules are taken by mouth and are designed to release the drug in the gastrointestinal tract. Topical capsules are applied to the skin and are designed to release the drug locally.
Based on their release profile: Capsules can be designed to release their contents immediately, over a period of time, or in a targeted manner. Immediate-release capsules release the drug immediately upon ingestion, while delayed-release capsules release the drug after a certain amount of time has passed. Targeted-release capsules are designed to release the drug in a specific part of the body.
Based on their color: Capsules can also be classified based on their color, which is often used to differentiate between different strengths or types of medication.
HPMC capsules are a type of capsule made from hydroxypropyl methylcellulose, which is a plant-based polymer. Here are some common classifications of HPMC capsules:
Based on their size: HPMC capsules are available in a range of sizes, just like gelatin capsules. The size is usually measured in terms of its capacity, which is the amount of fill that it can hold.
Based on their color: HPMC capsules can be produced in a wide range of colors, just like gelatin capsules. The color is often used to differentiate between different strengths or types of medication.
Based on their intended use: HPMC capsules can be designed for oral or topical use. Oral HPMC capsules are taken by mouth and are designed to release the drug in the gastrointestinal tract. Topical HPMC capsules are applied to the skin and are designed to release the drug locally.
Based on their release profile: HPMC capsules can be designed to release their contents immediately, over a period of time, or in a targeted manner. Immediate-release HPMC capsules release the drug immediately upon ingestion, while delayed-release HPMC capsules release the drug after a certain amount of time has passed. Targeted-release HPMC capsules are designed to release the drug in a specific part of the body.
Based on their certification: HPMC capsules can be certified as vegetarian or vegan, as they are made from a plant-based polymer. This can be an important consideration for individuals who follow specific dietary restrictions or have ethical concerns.
Based on their quality grade: HPMC capsules can be classified based on their quality grade, with different grades representing different levels of quality and purity. This can be an important consideration for pharmaceutical companies and other manufacturers who require high-quality materials for their products.
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