? These drugs are packed into capsules, which not only protect the medicinal properties of the drugs from being destroyed, but also protect the digestive organs and respiratory tract. Removal of capsule shell may lead to drug loss, drug waste and reduced curative effect. In addition, some drugs need to be dissolved and absorbed in the intestine, and capsules are a kind of protection to protect drugs from being destroyed by gastric acid.
Tablets are composed of raw materials, fillers, adsorbents, adhesives, lubricants, dispersants, wetting agents, disintegrants, spices, pigments, etc. Firstly, the raw materials are crushed, granulated and dried, and then pressed by a tablet press. Some do not need granulation and drying, and are directly pressed into tablets. In terms of tablet quality, it is required that the content is accurate, the weight difference is small, the disintegration time limit or dissolution rate meets the requirements, the hardness is appropriate, the appearance is beautiful, the color is good, it meets the hygiene inspection standards, and the properties are stable within the specified storage period.
Accurate dosage, stable physical and chemical properties, long storage period, convenient use, transportation and carrying, low price and high yield. The characteristics of tablets are: accurate measurement and small difference in drug content in tablets. Stable quality and convenient carrying, transporting and taking; Mechanized production, high output, low cost, and "health standards" are easy to achieve.
Because the preparation does not add adhesive and pressure, it disintegrates faster in gastrointestinal tract than tablets and has good absorption. Improve drug stability. If it is sensitive to light and unstable when heated, it can be packaged. If the oil content is high and it is not easy to make tablets, it can be made into capsules. Drugs can be released at a fixed time.