Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Stable dextromethorphan hydrobromide, chlorphenamine maleate and ammonium chloride oral solution and preparation method thereof

An oral solution and a stable technology, which are applied in the field of fenamicin ammonium oral solution and its preparation, can solve the problems of poor stability of inclusion compounds, incompatibility of sucrose, and reduced ammonium chloride content, and achieve increased solubility and improved water solubility. effect of improving safety

Active Publication Date: 2020-07-24
HEFEI IND PHARMA INST
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the clinical treatment of cough and phlegm tends to take effect quickly, and the inclusion process of beta-cyclodextrin is complicated, the inclusion rate is unstable, and the stability of the inclusion complex is poor.
In addition, there are many auxiliary materials in the prescription, the preparation process is complicated, and it contains preservatives, which have certain toxicity.
[0004] In addition, the study found that the mepheniramine syrup that has been on the market has poor stability, and the main drug ammonium chloride is incompatible with sucrose. During storage, brown precipitates often appear, and at the same time, the ammonium chloride content decreases.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Stable dextromethorphan hydrobromide, chlorphenamine maleate and ammonium chloride oral solution and preparation method thereof
  • Stable dextromethorphan hydrobromide, chlorphenamine maleate and ammonium chloride oral solution and preparation method thereof
  • Stable dextromethorphan hydrobromide, chlorphenamine maleate and ammonium chloride oral solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 (preparation of oral liquid)

[0034] Recipe ratio:

[0035]

[0036] Preparation Process:

[0037] Dextromethorphan Hydrobromide, Chlorpheniramine Maleate, Ammonium Chloride, Citric Acid, Sodium Citrate, Propylene Glycol, Cherry Essence, Amaranth are taken by weighing prescription quantity;

[0038] Add dextromethorphan hydrobromide, chlorpheniramine maleate, and ammonium chloride to propylene glycol and stir to dissolve, then add citric acid, sodium citrate, cherry essence, amaranth and part of freshly boiled and cooled purified water , stir until uniform;

[0039] Use citric acid to adjust the pH to 4.5-5.8, add freshly boiled and cooled purified water to make up to the full amount, mix for 15 minutes, and filter with a 0.45um filter. For filling, the bottle is a brown polyester bottle with a childproof cap.

Embodiment 2

[0040] Embodiment 2 (preparation of oral liquid)

[0041] Recipe ratio:

[0042]

[0043] Preparation Process:

[0044] Dextromethorphan hydrobromide, chlorpheniramine maleate, ammonium chloride, citric acid, sodium citrate, propylene glycol, apple essence, chlorophyll were weighed in prescription quantities;

[0045] Add dextromethorphan hydrobromide, chlorpheniramine maleate, and ammonium chloride to propylene glycol and stir to dissolve; then add citric acid, sodium citrate, apple essence, chlorophyll, and part of freshly boiled and cooled purified water, Stir until uniform;

[0046] Use citric acid to adjust the pH to 4.5-5.8, add freshly boiled and cooled purified water to make up to the full amount, mix for 15 minutes, and filter with a 0.45 μm filter. For filling, the bottle is a brown polyester bottle with a childproof cap.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Viscosityaaaaaaaaaa
Login to View More

Abstract

The invention provides a stable dextromethorphan hydrobromide, chlorphenamine maleate and ammonium chloride oral solution and a preparation method thereof. The dextromethorphan hydrobromide, chlorphenamine maleate and ammonium chloride oral solution is prepared from 0.03-0.3% (w / v) of dextromethorphan hydrobromide, 0.01-0.2% (w / v) of chlorpheniramine maleate, 0.1-3.0% (w / v) of ammonium chloride, 0.02-5% (w / v) of a pH regulator, 0.01-2% (w / v) of an aromatizer, 0.008-0.1% (w / v) of a colorant, water and 10%-25% (w / v) of propylene glycol. The stable dextromethorphan hydrobromide, chlorphenamine maleate and ammonium chloride oral solution can take effect quickly; the prescription does not contain sucrose, so that incompatibility of sucrose with ammonium chloride is avoided; preservatives are not contained, and the safety of the solution is improved; the solubility of dextromethorphan hydrobromide is increased by using the propylene glycol; and the content of the propylene glycol is 10%-25%,the antibacterial effect is obvious, and the preservatives do not need to be added.

Description

technical field [0001] The invention relates to the field of pharmaceutical preparations, in particular to a stable mephenamine ammonium oral solution and a preparation method thereof. Background technique [0002] Mepheniramine ammonium syrup is a marketed drug, which is a syrup composed of dextromethorphan hydrobromide, chlorpheniramine maleate and ammonium chloride, and is used to eliminate or relieve pain caused by upper respiratory tract infections and allergic reactions. Cough, thick and thick sputum, or accompanied by nasal congestion, runny nose, and sneezing. At present, there is no similar compound oral solution on the market in China. [0003] Patent CN200910180940 discloses a compound sustained-release oral solution, which achieves a sustained-release effect by encapsulating dextromethorphan with beta-cyclodextrin, and improves the taste and water solubility of dextromethorphan. However, the clinical treatment of cough and expectorant tends to take effect quick...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61K9/08A61K31/485A61K31/4402A61K47/10A61K47/02A61P11/10A61P11/14
CPCA61K31/485A61K31/4402A61K9/0095A61K47/10A61K47/02A61P11/10A61P11/14A61K2300/00
Inventor 何广卫苏峰陈娟娟毕东辉王会
Owner HEFEI IND PHARMA INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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