Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Cyclopentanohydrophenanthrene ring system doai
Patent
1990-06-13
1993-03-02
Schenkman, Leonard
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Cyclopentanohydrophenanthrene ring system doai
424450, 424455, A61K 3156, A61K 3722
Patent
active
051909367
ABSTRACT:
The process consists in dissolving a corticosteroid in the lipid phase of nonionic amphiphilic lipid vesicles consisting of one or more lipid lamellae.
Composition for carrying out the above process, in which the vesicles are dispersed in an aqueous phase D, have an average diameter of between 10 and 5,000 nm and contain as corticosteroids 17- and/or 21-mono- or -diesters of hydrocortisone, cortisone, prednisone, prednisolone or 6-methylprednisolone, the corticosteroids representing 0.5 to 2.5% by weight of the total lipids of the lamellae.
REFERENCES:
patent: 4217344 (1980-08-01), Vanlerberghe et al.
patent: 4772471 (1988-09-01), Vanlerberghe et al.
STN International File Server (Karlsruhe) & Chemical Abstracts. vol. 104, No. 17, Apr. 28, 1986, No. 142371m.
French Search Report on FR 89 07947.
Laugier Jean-Pierre
Ringenbach Francois
Segot Evelyne
Simonnet Jean-Thierry
Touzan Philippe M.
"L'Oreal"
Criares T. J.
Schenkman Leonard
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