Dry granulated formulations of azithromycin
US7438924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jun 12, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P33/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to a pharmaceutical formulation, in the form of a tablet, sachet or powder for suspension dosage form, which comprises dry granulated particles of a non-dihydrate form of azithromycin and, optionally, one or more pharmaceutically acceptable excipients. Preferably, the pharmaceutical formulation is a tablet containing between about 40%, by weight, to about 90%, by weight, non-dihydrate azithromycin.More preferably, the pharmaceutical formulation contains non-dihydrate azithromycin selected from the forms B, D, E, F, G, H, J, M, N, O, P, Q, R, or mixtures thereof.Even more preferably, the invention relates to a pharmaceutical formulation wherein the dosage of azithromycin is 250 mgA, 500 mgA, 600 mgA or 1000 mgA.The present invention further relates to a dry granulated azithromycin particle, comprising a form of azithromycin, selected from forms D, E, F, G, H, J, M, N, O, P, Q, R and mixtures of non-dihydrate forms, and at least one pharmaceutically acceptable excipient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.