JPS55167219A - Powder drug coating - Google Patents
Powder drug coatingInfo
- Publication number
- JPS55167219A JPS55167219A JP7620379A JP7620379A JPS55167219A JP S55167219 A JPS55167219 A JP S55167219A JP 7620379 A JP7620379 A JP 7620379A JP 7620379 A JP7620379 A JP 7620379A JP S55167219 A JPS55167219 A JP S55167219A
- Authority
- JP
- Japan
- Prior art keywords
- water
- drug
- aqueous solution
- high polymer
- polymer substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003814 drug Substances 0.000 title abstract 8
- 229940079593 drug Drugs 0.000 title abstract 8
- 239000000843 powder Substances 0.000 title abstract 4
- 239000011248 coating agent Substances 0.000 title abstract 3
- 238000000576 coating method Methods 0.000 title abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 3
- 239000000126 substance Substances 0.000 abstract 3
- 239000006185 dispersion Substances 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 2
- 238000000227 grinding Methods 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 1
- 108010010803 Gelatin Proteins 0.000 abstract 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 abstract 1
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 239000008280 blood Substances 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 abstract 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 1
- 229920006184 cellulose methylcellulose Polymers 0.000 abstract 1
- -1 e.g. Substances 0.000 abstract 1
- 229920000159 gelatin Polymers 0.000 abstract 1
- 239000008273 gelatin Substances 0.000 abstract 1
- 235000019322 gelatine Nutrition 0.000 abstract 1
- 235000011852 gelatine desserts Nutrition 0.000 abstract 1
- 238000001879 gelation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 abstract 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000011164 primary particle Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000001694 spray drying Methods 0.000 abstract 1
Landscapes
- Medicinal Preparation (AREA)
Abstract
PURPOSE: To obtain through coating a powder drug having improved dispersion properties in water a gain and capable of reaching the effective blood concentration quickly, by a simple method wherein a slightly water-soluble drug is ground in an aqueous solution of a water-soluble high polymer substance and dried.
CONSTITUTION: A slightly water-insoluble drug is ground in an aqueous solution of a water-soluble high polymer substance, e.g., hydroxypropyl cellulose, CMC, gelatin, etc. and dried so that the powder drug is coated. The coating is also carried out by grinding the drug in an aqueous solution of a thermally gelling water-soluble high polymer substance, followed by gelation through heating, separation, drying, and application. In grinding, a wet grinder, e.g., ball mill, etc. is used to give particle diameters of preferably not more than 5μ. Spray drying is preferable in drying preventing the enlargement of the particles through agglomeration and growth of primary particles. A solid drug obtained from pharmaceutical manufacturing of the powder drug has also good dispersion properties in water again.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54076203A JPS587609B2 (en) | 1979-06-17 | 1979-06-17 | Powder drug coating method |
DE19803013839 DE3013839A1 (en) | 1979-04-13 | 1980-04-10 | METHOD FOR PRODUCING AN ACTIVATED PHARMACEUTICAL COMPOSITION |
CH281080A CH646052A5 (en) | 1979-04-13 | 1980-04-11 | METHOD FOR PRODUCING AN ACTIVATED PHARMACEUTICAL COMPOSITION. |
IT48394/80A IT1143089B (en) | 1979-04-13 | 1980-04-11 | PROCEDURE FOR PREPARING ACTIVATED PHARMACEUTICAL COMPOSITIONS |
GB8012248A GB2050828B (en) | 1979-04-13 | 1980-04-14 | Process for the preparations of finely divided pharmaceutical compositions |
US06/420,384 US4540602A (en) | 1979-04-13 | 1982-09-20 | Process for the preparation of activated pharmaceutical compositions |
GB08315756A GB2122085B (en) | 1979-04-13 | 1983-06-08 | A process for the preparation of activated pharmaceutical compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54076203A JPS587609B2 (en) | 1979-06-17 | 1979-06-17 | Powder drug coating method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55167219A true JPS55167219A (en) | 1980-12-26 |
JPS587609B2 JPS587609B2 (en) | 1983-02-10 |
Family
ID=13598592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54076203A Expired JPS587609B2 (en) | 1979-04-13 | 1979-06-17 | Powder drug coating method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS587609B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61159430A (en) * | 1985-01-07 | 1986-07-19 | Daicel Chem Ind Ltd | Production of chitin or chitosan composition of good redispersing suspensibility |
AT389813B (en) * | 1982-04-19 | 1990-02-12 | Elan Corp Ltd | METHOD FOR PRODUCING MEDICAS WITH A HIGH SOLUBILITY LEVEL |
JP2002506010A (en) | 1998-03-11 | 2002-02-26 | スミスクライン・ビーチャム・コーポレイション | Novel composition of eprosartan |
JP2007522079A (en) | 2003-10-31 | 2007-08-09 | エラン ファーマ インターナショナル リミテッド | Nimesulide composition |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132718A (en) * | 1974-09-13 | 1976-03-19 | Yoshinobu Nakai | Nanyoseiyakuhin no yoshutsusokudochosetsuho |
JPS539315A (en) * | 1976-07-09 | 1978-01-27 | Asahi Chem Ind Co Ltd | Preparation of hardly soluble pharmaceuticals |
-
1979
- 1979-06-17 JP JP54076203A patent/JPS587609B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5132718A (en) * | 1974-09-13 | 1976-03-19 | Yoshinobu Nakai | Nanyoseiyakuhin no yoshutsusokudochosetsuho |
JPS539315A (en) * | 1976-07-09 | 1978-01-27 | Asahi Chem Ind Co Ltd | Preparation of hardly soluble pharmaceuticals |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT389813B (en) * | 1982-04-19 | 1990-02-12 | Elan Corp Ltd | METHOD FOR PRODUCING MEDICAS WITH A HIGH SOLUBILITY LEVEL |
JPS61159430A (en) * | 1985-01-07 | 1986-07-19 | Daicel Chem Ind Ltd | Production of chitin or chitosan composition of good redispersing suspensibility |
JP2002506010A (en) | 1998-03-11 | 2002-02-26 | スミスクライン・ビーチャム・コーポレイション | Novel composition of eprosartan |
JP2007522079A (en) | 2003-10-31 | 2007-08-09 | エラン ファーマ インターナショナル リミテッド | Nimesulide composition |
Also Published As
Publication number | Publication date |
---|---|
JPS587609B2 (en) | 1983-02-10 |
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