The asymmetric membrane capsule is an example of a single core osmotic delivery system, consisting of a drug-containing core surrounded by an asymmetric membrane made with a non disintegrating polymer (cellulose acetate, ethylcellulose etc.).[1][2]

References

  1. ↑ Wang, Chun-Yu; Ho, Hsiu-O; Lin, Ling-Hong; Lin, Ying-Ku; Sheu, Ming-Thau (2005). "Asymmetric membrane capsules for delivery of poorly water-soluble drugs by osmotic effects". International Journal of Pharmaceutics. 297 (1–2): 89–97. doi:10.1016/j.ijpharm.2005.03.026. PMID 15885936.
  2. ↑ Philip, Anil K.; Pathak, Kamla; Shakya, Pragati (2008). "Asymmetric membrane in membrane capsules: A means for achieving delayed and osmotic flow of cefadroxil". European Journal of Pharmaceutics and Biopharmaceutics. 69 (2): 658–666. doi:10.1016/j.ejpb.2007.12.011. PMID 18206358.


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