Pharmaceutical formulations for aerosols with two or more active substances
US6423298B1 · kind B1 · utility
44Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1999 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Jun 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/46
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to new pharmaceutical formulations for aerosols with at least two or more active substances for administration by inhalation or by nasal route. Specifically, the invention relates to pharmaceutical preparations for propellant-driven metered dose aerosols using a fluorohydrocarbon (HFC) as propellant, which contain a combination of active substance of two or more active substances, wherein at least one active substance is present in dissolved form together with at least one other active substance in the form of suspended particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.