Potassium sodium dehydroandroandrographolide succinates and their preparations
A technology of andrographolide and disuccinic acid half ester, which is applied in antiviral agents, medical preparations containing active ingredients, organic active ingredients, etc. It can solve the problems of easy precipitation, side effects, and short storage time of preparations, etc. problems, to achieve the effect of good clinical curative effect, stable quality, excellent purity and solubility
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0036] The preparation of Yanhuning, raw material consumption is as follows:
[0037] Chuanhuning 0.956g
[0038] Sodium bicarbonate for injection 0.17g
[0039] Activated carbon for injection 33g
[0040] Water for injection 9L
[0041] Mannitol 98g
[0042] 1kg
[0043] 1. Take the prescribed amount of Chuanhuning and add 20% water for injection to make a suspension.
[0044] 2. Preparation of 2-4% NaHCO3 solution: weigh the NaHCO3 of the prescribed amount, add water for injection to make 6500ml of NaHCO3 solution.
[0045] 3. Control the temperature of the above suspension at 35±5°C, and keep stirring under N2, slowly add 2-4% NaHCO3 to make it completely dissolved until clear, add mannitol and mix well, and adjust the pH with NaHCO3 solution To the range of 6.5-7.5, continue to pass N2 to measure the pH value of the solution, then make up the volume with water for i...
Embodiment 2
[0047] Preparation of freeze-dried powder injection
[0048] Take 200g of Yanhuning and add 500ml of about 80% of the total volume of water for injection to dissolve, measure the pH, adjust the pH to 6.5-7.5 with 4% NaHCO3 solution, add water for injection to the full amount, add activated carbon for decolorization, filter out the carbon, and measure the pH. After the content is qualified, it is sterile filtered, and after the clarity is qualified, it is filled into 1000 bottles, half-stoppered, and put into a box for freeze-drying. Box out, capping, crimping, light inspection, packaging
Embodiment 3
[0050] Preparation of Injection
[0051] Dissolve 200g of Yanhuning powder in 1800ml of water for injection, adjust the pH to 6.5-7.5 with 4% NaHCO3 solution, decarbonize, filter, add water to 2000ml, fill into 1000 bottles, and sterilize.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com