FU Qing-xia. Preparation and Quality Evaluation of Qingkailing Ophthalmic Gels[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(20): 6-9.
FU Qing-xia. Preparation and Quality Evaluation of Qingkailing Ophthalmic Gels[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(20): 6-9. DOI: 10.13422/j.cnki.syfjx.2014200006.
Objective: To prepare temperature sensitive type of Qingkailing ophthalmic in situ gels and evaluate its quality. Method: Gels matrix was optimized by single factor tests
Qingkailing ophthalmic in situ gels was prepared by the 2010 edition of 〈Chinese Pharmacopoeia〉
its quality was measured by factors of osmotic pressure
eye retention capacity
viscosity and in vitro release. Result: Taking mixture of 16% poloxamer 407 and 0.1% sodlium hyaluronate as gel matrix
Qingkailing injections lost completely in 9.9 min
while Qingkailing ophthalmic in situ gels could stay for a longer time of 30.6 min. Conclusion: Qingkailing ophthalmic in situ gels has good formability
namely accords with requirement of in situ gels.Compared with injections
this product can stay a longer time in application site and significantly increase viscosity with a good sustained release characteristics.