Characteristics of enteric coated capsules

Enteric coated capsule, generally speaking, is a capsule that can be dissolved and absorbed in the human small intestine. In fact, the so-called enteric coated capsule only adds special medicinal polymer materials to the capsule shell or is specially treated to make it insoluble in gastric juice and only disintegrate and dissolve in intestinal juice. The capsule will not be dissolved in the stomach, or in water or even boiling water.

"Enteric coated capsules need to meet alkaline liquid in the intestine to dissolve, and gastric acid is acidic, so the capsule will not dissolve in the stomach. If enteric coated capsules dissolve in the stomach, it may cause damage to the stomach."

Now the capsule commonly seen in clinic is gelatin capsule, which is composed of gelatin. Medicinal gelatin is a high-grade glue made of animal skin, bone and tendon through complex physical and chemical treatment. It has the physical characteristics of high viscosity, high freezing force and easy freezing.

The digestive organs of the human body are mainly the stomach and intestines. The stomach is mainly acidic and the intestines are alkaline. Therefore, according to this part, there are generally two kinds of capsules, one is dissolved in the stomach and the other is dissolved in the intestine. Because some drugs have strong irritation to the stomach and harmful effect, but they do no harm to the intestine. Therefore, for this part of drugs, we should make this enteric coated capsule.