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Influence of hydroxypropyl-beta-cyclodextrin complexation on piroxicam release from buccoadhesive tablets.
Eur J Pharm Sci. 2004 Feb; 21(2-3):251-60.EJ

Abstract

Interaction of piroxicam (PX) and hydroxypropyl-beta-cyclodextrin (HPbetaCD) was investigated in solution and in the solid state. Solubility studies demonstrated the formation of the PX-HPbetaCD inclusion complex with 1:1 stoichiometry. Equimolecular PX-HPbetaCD solid systems were prepared and characterized by differential scanning calorimetry, Fourier transform infrared spectroscopy, and X-ray diffractometry. Modification of the release of a sparingly water-soluble drug, PX, from hydrophilic matrices using cyclodextrin complexation was evaluated. The buccoadhesive controlled release tablets for the delivery of PX were prepared by direct compression of hydroxypropylmethyl cellulose (HPMC) and Carbopol 940 (C940), which showed superior bioadhesion properties compared to HPMC. The tablets were evaluated for their dissolution, swelling and mucoadhesive properties. The in vitro release results demonstrated that matrix tablets containing the PX-HPbetaCD solid complex displayed faster PX release compared to those containing a physical mixture or "free" drug. Differences in release rates of PX from the tablets could be attributed to the presence of the polymers and to cyclodextrin complexation. The effect of the polymers on PX release can affect the drug solubility (complexation) and polymer water uptake (swelling). Higher polymer water uptake may result in higher drug solubility and diffusivity in a hydrated polymeric environment. Drug complexation affected also its diffusivity through the semipermeable membrane.

Authors+Show Affiliations

Department of Pharmaceutics, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovacića 1, 10 000, Zagreb, Croatia. mira_becirevic@Yahoo.comNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

14757497

Citation

Jug, Mario, and Mira Bećirević-Laćan. "Influence of Hydroxypropyl-beta-cyclodextrin Complexation On Piroxicam Release From Buccoadhesive Tablets." European Journal of Pharmaceutical Sciences : Official Journal of the European Federation for Pharmaceutical Sciences, vol. 21, no. 2-3, 2004, pp. 251-60.
Jug M, Bećirević-Laćan M. Influence of hydroxypropyl-beta-cyclodextrin complexation on piroxicam release from buccoadhesive tablets. Eur J Pharm Sci. 2004;21(2-3):251-60.
Jug, M., & Bećirević-Laćan, M. (2004). Influence of hydroxypropyl-beta-cyclodextrin complexation on piroxicam release from buccoadhesive tablets. European Journal of Pharmaceutical Sciences : Official Journal of the European Federation for Pharmaceutical Sciences, 21(2-3), 251-60.
Jug M, Bećirević-Laćan M. Influence of Hydroxypropyl-beta-cyclodextrin Complexation On Piroxicam Release From Buccoadhesive Tablets. Eur J Pharm Sci. 2004;21(2-3):251-60. PubMed PMID: 14757497.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of hydroxypropyl-beta-cyclodextrin complexation on piroxicam release from buccoadhesive tablets. AU - Jug,Mario, AU - Bećirević-Laćan,Mira, PY - 2004/2/6/pubmed PY - 2004/12/16/medline PY - 2004/2/6/entrez SP - 251 EP - 60 JF - European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences JO - Eur J Pharm Sci VL - 21 IS - 2-3 N2 - Interaction of piroxicam (PX) and hydroxypropyl-beta-cyclodextrin (HPbetaCD) was investigated in solution and in the solid state. Solubility studies demonstrated the formation of the PX-HPbetaCD inclusion complex with 1:1 stoichiometry. Equimolecular PX-HPbetaCD solid systems were prepared and characterized by differential scanning calorimetry, Fourier transform infrared spectroscopy, and X-ray diffractometry. Modification of the release of a sparingly water-soluble drug, PX, from hydrophilic matrices using cyclodextrin complexation was evaluated. The buccoadhesive controlled release tablets for the delivery of PX were prepared by direct compression of hydroxypropylmethyl cellulose (HPMC) and Carbopol 940 (C940), which showed superior bioadhesion properties compared to HPMC. The tablets were evaluated for their dissolution, swelling and mucoadhesive properties. The in vitro release results demonstrated that matrix tablets containing the PX-HPbetaCD solid complex displayed faster PX release compared to those containing a physical mixture or "free" drug. Differences in release rates of PX from the tablets could be attributed to the presence of the polymers and to cyclodextrin complexation. The effect of the polymers on PX release can affect the drug solubility (complexation) and polymer water uptake (swelling). Higher polymer water uptake may result in higher drug solubility and diffusivity in a hydrated polymeric environment. Drug complexation affected also its diffusivity through the semipermeable membrane. SN - 0928-0987 UR - https://www.unboundmedicine.com/medline/citation/14757497/Influence_of_hydroxypropyl_beta_cyclodextrin_complexation_on_piroxicam_release_from_buccoadhesive_tablets_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0928098703002896 DB - PRIME DP - Unbound Medicine ER -