Penetration enhancement of ibuprofen from supersaturated solutions through human skin.
Int J Pharm
; 212(1): 131-41, 2001 Jan 05.
Article
em En
| MEDLINE
| ID: mdl-11165828
ABSTRACT
Systematic investigations on the diffusion of ibuprofen (IBU) from supersaturated solutions through human epidermis are reported. Significant flux enhancement was obtained from supersaturated solutions compared to the saturated solution. Hydroxypropyl methylcellulose (HPMC), when used as an additive was found to be effective in maintaining the high activity state at high degrees of saturation (DS). The increase in the flux was proportional to the DS. In the presence of 2-hydroxypropyl-beta-cyclodextrin (CD) at DS 2 and 3 a lower flux was observed compared to HPMC. At DS 5 a higher flux enhancement was found suggesting that CD might act as a penetration enhancer at certain CD/drug ratios. Studies on the mechanism of stabilisation of HPMC and CD on IBU crystallisation from supersaturated systems showed that HPMC acts as a growth inhibitor and habit modifier whereas CD does not influence the crystallisation process.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pele
/
Anti-Inflamatórios não Esteroides
/
Ibuprofeno
/
Ciclodextrinas
/
Beta-Ciclodextrinas
/
Lactose
/
Metilcelulose
Limite:
Humans
Idioma:
En
Revista:
Int J Pharm
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Itália