Environment-friendly type niclosamide sustained-release block and preparation method thereof

A technology for niclosamide and niclosamide ethanolamine salt, which is applied in the field of environment-friendly niclosamide sustained-release blocks and their production, can solve problems such as difficulty in large-scale application of snail control and excide on-site, and achieves low price , the effect of reducing costs
CN101317564AInactive Publication Date: 2008-12-10熊海波
0 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
熊海波
Publication Date
2008-12-10
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to a medicament used for killing oncomelania and schistosoma japonicum cercaria, in particular to an environmental-protection typed niclosamide slow releasing block and a preparation method thereof. The best proportioning of the slow releasing block of the invention according to the weight portions is 50 portions of niclosamide ethanolamine salt wettable powder, 30 portions of sawdust, 20 portions of perlite and 3 portions of polyvinyl alcohol for the upper floating type and is 50 portions of niclosamide ethanolamine salt wettable powder, 20 portions of sawdust, 30 portions of red soil and 3 portions of polyvinyl alcohol. The invention uses the niclosamide recommended by WHO as the main medicament; the adopted carrier material is sawdust which has low price and causes no environmental pollution; more than 6,000m<2> can be released in the operation of two persons each day, thus saving the niclosamide by 50% and the cost by 40%.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a medicine for killing oncomelania and schistosome cercariae, in particular to an environment-friendly niclosamide slow-release block and a preparation method thereof. Background technique

[0002] In schistosomiasis-endemic areas, snails are the intermediate hosts of schistosomiasis, and the prevalence of schistosomiasis can be controlled by eliminating snails or their escaped cercariae. Niclosamide is currently the only effective and low-toxic drug recommended by the World Health Organization for killing snails and cercariae. Only Waizhou, Hunan Province has an area of ​​2.6 million mu of oncomelania. Hundreds of tons of niclosamide are invested in mollusc control every year, consuming more than tens of millions of manpower, material and financial resources, but the area of ​​mollusc control is less than 1 / 6. Can not effectively control the prevalence of schistosomiasis. And the amount of molluscicide is large, which affec...

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