Spray foam corticosteroid product
US9265727B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2015 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Jan 14, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A foamable pharmaceutical composition and a method of treating corticosteroid-responsive dermatoses of the skin are disclosed. The foamable pharmaceutical composition comprises a corticosteroid compound as an active ingredient; a quick-break foaming agent including an aliphatic alcohol, water, a fatty alcohol and a surface active agent; a buffering agent; and a propellant. The foamable composition is disposed within a pressurizable container that comprises an aerosol valve assembly including a dip tube communicating with a valve orifice through which the foamable composition is dispensed and an actuator to start and stop dispensation. The valve assembly dispenses a conically-shaped spray at a rate of about 2 to about 0.3 g/sec and provides a foam having a density of about 0.12 to about 0.25 when sprayed at a distance of about 5 to about 10 cm from the valve orifice onto a glass surface that is at ambient room temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.