Table 1.

Effect of different fractions of selected medicinal plants on COX-1 activity.

Sr. No.	Name of plant samples	Inhibition of COX-1 (%)
		Water	Ethanol	Hexane	Mean activity
1	Cissus quadrangularis	28.18 ± 0.70	84.94 ± 0.99	46.64 ± 0.69	53.25
2	Plumbago zeylanica	NR	41.48 ± 0.62	36.25 ± 0.54	25.91
3	Terminalia bellarica	75.16 ± 0.41	62.24 ± 0.79	48.09 ± 0.56	61.83
4	Terminalia chebulla	72.16 ± 0.93	86.32 ± 1.18	NR	52.82
5	Aspirin	ND 08.54 ± 0.37 ND			ND

Results summarized are the mean values of n = 3 ± S.D., NR – no reaction under experimental condition, ND – not determined.