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Because of the strong demand for non-gelatin capsules, cellulose esters (such as hydroxypropylmethylcellulose, etc.), plant polysaccharides (such as pullulan, alginic acid, carrageenan and agar) and plant starch have been formed internationally. A new type of plant capsule product of three different types of raw materials represented by the class (such as modified corn starch, potato starch and sweet potato starch).

The process by which a drug enters the blood circulation from the site of administration is called drug absorption. Many factors can affect the absorption of drugs, such as the physical and chemical properties of the drug, the dosage form, the formulation and the route of administration.

Capsules or tablets contain active and inactive ingredients. The active ingredient is a component of the drug that provides medicinal value, while the non-active ingredient acts as a carrier for the drug to make the body easier to handle.

Capsules made from animal-derived gelatin have been used for at least 200 years. Because gelatin can mask the bad taste, odor or irritation of many drugs, gelatin capsules are quickly being used in the production of various solid preparations. Over the past 100 years, gelatin-based capsules have long been popular in the international pharmaceutical market. By 2007, the total output of various capsules worldwide was around 3.5 trillion.

Medications help us extend life and health. However, incorrect medication can not only fully exert the efficacy of the drug, but also may cause side effects. Therefore, it is necessary to understand safe and reasonable medication knowledge.

In 2015, the demand for capsules in China has reached 300 billion, with a compound annual growth rate of 8.3% in the past five years. From the perspective of industry market composition, empty capsules are widely used in health food and pharmaceutical fields. According to Wind industry data, the market share of pharmaceuticals in the retail market dropped significantly from 11.28% in 2004 to 8.10% in 2014. The market share of health foods has gradually increased, accounting for 10.99% of the entire retail market.

From the perspective of market demand, with the improvement of economic level and consumption capacity, population growth and aging, and the increase of people's health awareness will drive the sustained and rapid development of the healthcare industry, which in turn will drive the demand for empty capsules.

The human gut is a world full of microbial flora. There are about 1000 kinds of bacteria living in the human intestine, collectively referred to as the intestinal flora. The total weight is about 1.5 kilograms. The number of cells is 10 times the total number of human cells.

Capsule pills, tablets, etc. need to add the excipients during the manufacturing process. Sometimes the amount of excipients even are greater than the main drug. In the preparation of the capsule drug, in addition to the main drug powder, an additional agent such as a diluent, a lubricant, a disintegrator or the like are added as needed.

Since the birth of capsules more than 100 years ago, capsules have achieved rapid development in the fields of health care and pharmaceuticals, and have become one of the most important dosage forms for oral solid preparations.