Effect of isopropyl myristate on the viscoelasticity and drug release of a drug-in-adhesive transdermal patch containing blonanserinEffect of isopropyl myristate on the viscoelasticity and drug release of a drug-in-adhesive transdermal patch containing blonanserinretain-->.
- Author:
Chunyi ZHAO
1
;
Peng QUAN
1
;
Chao LIU
1
;
Qiaoyun LI
1
;
Liang FANG
1
Author Information
1. Department of Pharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China.
- Publication Type:Journal Article
- Keywords:
Blonanserin;
Drug release;
Drug-in-adhesive patch;
Isopropyl myristate;
Viscoelasticity
- From:
Acta Pharmaceutica Sinica B
2016;6(6):623-628
- CountryChina
- Language:English
-
Abstract:
The purpose of this study was to investigate the effect of isopropyl myristate (IPM), a penetration enhancer, on the viscoelasticity and drug release of a drug-in-adhesive transdermal patch containing blonanserin. The patches were prepared with DURO-TAK87-2287 as a pressure-sensitive adhesive (PSA) containing 5% (/) of blonanserin and different concentrations of IPM. Anrelease experiment was performed and the adhesive performance of the drug-in-adhesive patches with different concentrations of IPM was evaluated by a rolling ball tack test and a shear-adhesion test. The glass transition temperature () and rheological parameters of the drug-in-adhesive layers were determined to study the effect of IPM on the mechanical properties of the PSA. The results of therelease experiment showed that the release rate of blonanserin increased with an increasing concentration of IPM. The rolling ball tack test and shear-adhesion test showed decreasing values with increasing IPM concentration. The results were interpreted on the basis of the IPM-induced plasticization of the PSA, as evidenced by a depression of the glass transition temperature and a decrease in the elastic modulus. In conclusion, IPM acted as a plasticizer on DURO-TAK87-2287, and it increased the release of blonanserin and affected the adhesive properties of the PSA.
