Tags

Type your tag names separated by a space and hit enter

Hydroxypropyl methylcellulose microspheres with piroxicam and piroxicam-hydroxypropyl-beta-cyclodextrin inclusion complex.
Pharmazie. 2004 Sep; 59(9):686-91.P

Abstract

Inclusion complexation between piroxicam (PX) and hydroxypropyl-beta-cyclodextrin (HPbetaCD) in the presence of hydroxypropyl methylcellulose (HPMC) was studied in aqueous solution and in the solid state. Phase solubility studies were used to evaluate the HPbetaCD complexation in the presence of HPMC. Stability constants, Ks, of the complexes were determined. The stability of the inclusion complex was improved in the presence of HPMC. Solid microspheres were obtained by spray drying, and were characterized by differential scanning calorimetry (DSC), regarding drug content, and particle size distribution. Scanning electron microscopy (SEM) was also used to characterize the systems prepared. In the solid system HPMC facilitated to some extent the drug dissolution due to increased solubility. The presence of HPMC and HPbetaCD in the microspheres promoted dissolution rate. Cyclodextrin complexation increased PX flux through a semipermeable membrane. Presence of HPMC in the system additionally increased the drug flux more than 80%, by increasing the drug solubility and consequently the affinity of the ternary complex for the aqueous diffusion layer in the donor compartment.

Authors+Show Affiliations

Department of Pharmaceutics, Faculty of Pharmacy and Biochemistry, University of Zagreb, Croatia.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15497750

Citation

Jug, M, et al. "Hydroxypropyl Methylcellulose Microspheres With Piroxicam and Piroxicam-hydroxypropyl-beta-cyclodextrin Inclusion Complex." Die Pharmazie, vol. 59, no. 9, 2004, pp. 686-91.
Jug M, Bećirević-Laćan M, Cetina-Cizmek B, et al. Hydroxypropyl methylcellulose microspheres with piroxicam and piroxicam-hydroxypropyl-beta-cyclodextrin inclusion complex. Pharmazie. 2004;59(9):686-91.
Jug, M., Bećirević-Laćan, M., Cetina-Cizmek, B., & Horvat, M. (2004). Hydroxypropyl methylcellulose microspheres with piroxicam and piroxicam-hydroxypropyl-beta-cyclodextrin inclusion complex. Die Pharmazie, 59(9), 686-91.
Jug M, et al. Hydroxypropyl Methylcellulose Microspheres With Piroxicam and Piroxicam-hydroxypropyl-beta-cyclodextrin Inclusion Complex. Pharmazie. 2004;59(9):686-91. PubMed PMID: 15497750.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hydroxypropyl methylcellulose microspheres with piroxicam and piroxicam-hydroxypropyl-beta-cyclodextrin inclusion complex. AU - Jug,M, AU - Bećirević-Laćan,M, AU - Cetina-Cizmek,B, AU - Horvat,M, PY - 2004/10/23/pubmed PY - 2004/12/16/medline PY - 2004/10/23/entrez SP - 686 EP - 91 JF - Die Pharmazie JO - Pharmazie VL - 59 IS - 9 N2 - Inclusion complexation between piroxicam (PX) and hydroxypropyl-beta-cyclodextrin (HPbetaCD) in the presence of hydroxypropyl methylcellulose (HPMC) was studied in aqueous solution and in the solid state. Phase solubility studies were used to evaluate the HPbetaCD complexation in the presence of HPMC. Stability constants, Ks, of the complexes were determined. The stability of the inclusion complex was improved in the presence of HPMC. Solid microspheres were obtained by spray drying, and were characterized by differential scanning calorimetry (DSC), regarding drug content, and particle size distribution. Scanning electron microscopy (SEM) was also used to characterize the systems prepared. In the solid system HPMC facilitated to some extent the drug dissolution due to increased solubility. The presence of HPMC and HPbetaCD in the microspheres promoted dissolution rate. Cyclodextrin complexation increased PX flux through a semipermeable membrane. Presence of HPMC in the system additionally increased the drug flux more than 80%, by increasing the drug solubility and consequently the affinity of the ternary complex for the aqueous diffusion layer in the donor compartment. SN - 0031-7144 UR - https://www.unboundmedicine.com/medline/citation/15497750/Hydroxypropyl_methylcellulose_microspheres_with_piroxicam_and_piroxicam_hydroxypropyl_beta_cyclodextrin_inclusion_complex_ L2 - https://www.lens.org/lens/search/patent/list?q=citation_id:15497750 DB - PRIME DP - Unbound Medicine ER -