GB Patent

GB879441A — Improved injectable iron preparations

Assigned to CROOKES LAB Ltd · Expires 1961-10-11 · 65y expired

What this patent protects

An injectable iron preparation is obtained by the reaction of an iron salt such as ferric chloride or ferric nitrate or of ferric oxychloride or of dialysed iron with a synthetic polysaccharide such as polyglucose or polygalactose in an alkaline medium. The ratio of the weight o…

USPTO Abstract

An injectable iron preparation is obtained by the reaction of an iron salt such as ferric chloride or ferric nitrate or of ferric oxychloride or of dialysed iron with a synthetic polysaccharide such as polyglucose or polygalactose in an alkaline medium. The ratio of the weight of the polysaccharde to the weight of iron is preferably from 10-20 : 1. The polysaccharide may be obtained by heating glucose or galactose with an acid catalyst until the resulting polysaccharide possesses only 5% and 1% respectively of the reducing value of the original sugar. It is then dissolved in water and the iron salt or dialysed iron added and then sufficient caustic soda solution added to produce a pH of about 11, and then the mixture heated to 100 DEG C. for about two hours. It is then cooled and methanol, ethanol, or acetone added and the precipitate removed. The injectable solution may contain 5- 1/4 % of iron.ALSO:An injectable iron preparation is obtained by the reaction of an iron salt such as ferric chloride or ferric nitrate or of ferric oxychloride or of dialysed iron with a synthetic polysaccharide such as polyglucose or polygalactose in an alkaline medium. The ratio of the weight of the polysaccharide to the weight of iron is preferably from 10 to 20 : 1. The polysaccharide may be obtained by heating glucose or galactose with an acid catalyst until the resulting polysaccharide possesses only 5% and 1% respectively of the reducing value of the original sugar. It is then dissolved in water and the iron salt or dialysed iron added and then sufficient caustic soda solution added to produce a pH of about 11, and then the mixture heated to 100 DEG C. for about two hours. It is then cooled and methanol ethanol or acetone added and the precipitate removed. The injectable solution may contain 5-7 1/4 % of iron.

Drugs covered by this patent

Patent Metadata

Patent number
GB879441A
Jurisdiction
GB
Classification
Expires
1961-10-11
Drug substance claim
No
Drug product claim
No
Assignee
CROOKES LAB Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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