Most pills irritate and irritate the lining of the gums or contain bad-tasting powders or pills that can easily break down saliva in the mouth and be easily absorbed through the respiratory tract. These drugs are packed in capsules that not only protect the therapeutic properties of the drug from deterioration, but also protect the digestive and respiratory systems. Capsule removal may result in drug wastage, collapse, and loss of efficacy. Also, some medications are digested and absorbed in the intestine, and these capsules prevent stomach acid from damaging the medication. In medicine, it refers to a pill made of a special film-forming material (eg gelatin, cellulose, polysaccharide, etc.) with an ingredient (eg powder, liquid, etc.).
