Hydrated magnesium acetylsalicylate/urea complex preparation
US4764637A · kind A · utility
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3Claims
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Key dates
| Filing date | Apr 18, 1986 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Apr 18, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P29/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The hydrated complex of magnesium acetylsalicylate and urea of formula ##STR1## possesses exceptional analgesic and antipyretic properties. It may be crystallized from a solution obtained by reacting acetylsalicylic acid with magnesium carbonate in the presence of urea.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.