If the current capsule shell materials do not have the requirements for enteric coating and slow-release, most of them are gelatin, which is smooth and easy to form; if enteric coating and slow-release are required, various acrylic resins and hydroxypropyl resins are often used. Materials such as methylcellulose (Empty HPMC Capsules Manufacturers) have wide adaptability and more precise control. Starch capsules have not been used for a long time, and their moldability, control ability, and adaptability are far inferior to gelatin and new polymer materials.

Drugs packed in capsules are generally powders or granules that are irritating to the esophagus and gastric mucosa or have a bad taste, are easy to volatilize, are easily broken down by saliva in the mouth, and are easy to inhale into the trachea. These medicines are packed in capsules, which not only protects the properties of the medicines from being destroyed but also protects the digestive organs and respiratory tract. Removal of the capsule shell may cause loss of medicine, waste of medicine, and reduced efficacy. In addition, some drugs need to be dissolved and absorbed in the intestine, and the capsules protect the drugs from being destroyed by gastric acid. In medicine, it refers to capsules made of special film-forming materials (such as Empty Gelatin Capsules Suppliers, Cellulose Capsule Suppliers, Empty Pullulan Capsules Factory, etc.) into which the contents or doses are packed for easy swallowing.