Table IV.

In vitro drug release profile of topical formulations

		Percent drug release after 7 hra
S. No	Formulation base	Norfloxacin (NF)	Metronidazole (MTZ)
1.	Carbopol	72.03 ± 2.1.11	63.04 ± 1.12
2.	PEG	65.74 ± 1.15	52.31 ± 1.75
3.	HPMC	45.13 ± 2.48	47.02 ± 1.23
4.	Ointment	41.00 ± 2.59	44.98 ± 1.13
5.	Silver Sulfadiazine cream, USP	71.17 ± 3.33

^aAverage of three determinations