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Layer-by-layer vaginal films for acyclovir controlled release to prevent genital herpes



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Pacheco Quito, Edisson Mauricio and Bedoya del Olmo, Luis Miguel and Rubio, Juan and Tamayo, Aitana and Ruiz Caro, Roberto and Veiga Ochoa, María Dolores (2022) Layer-by-layer vaginal films for acyclovir controlled release to prevent genital herpes. International journal of pharmaceutics, 627 . p. 122239. ISSN 0378-5173

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Official URL: https://doi.org/10.1016/j.ijpharm.2022.122239


Genital herpes is one of the most common sexually transmitted infections worldwide. It mainly affects women, as the rate of sexual transmission from male-to-female is higher than from female-to-male. The application of vaginal antivirals drugs could reduce the prevalence of genital herpes and prevent future infections. Layer-bylayer vaginal films were prepared by the solvent evaporation method using iota-carrageenan, hydroxypropyl methylcellulose and the polymethacrylates Eudragit® RS PO and Eudragit® S100, for the controlled release of acyclovir. The films were characterized by texture analysis and Raman spectroscopy. Swelling, mucoadhesion, and drug release studies were conducted in simulated vaginal fluid. The results show that Layer-by-Layer films exhibited adequate mechanical properties. The structuring of the layer-by-layer films allowed the controlled release of acyclovir and produced a prolonged mucoadhesion residence time of up to 192 h. The films formed in layer 2 by the combination of Eudragit® RS PO and S100 showed a controlled release of acyclovir for eight days, and adequate mechanical properties. These promising formulations for the prevention of genital herpes deserve further evaluation.

Item Type:Article
Additional Information:

CRUE-CSIC (Acuerdos Transformativos 2022)

Uncontrolled Keywords:Genital herpes, Acyclovir controlled release, Marine polymers, Layer-by-layer film, Iota-carrageenan, Hydroxypropyl methylcellulose
Subjects:Medical sciences > Pharmacy > Pharmacology
ID Code:74921
Deposited On:04 Oct 2022 15:08
Last Modified:04 Oct 2022 15:12

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