Table 2. In-vitro antioxidant activity of drugs showing good anti-glycation activity.

Drug	DPPH Radical scavenging activity		Fe+2 Chelation activity
	% Inhibition	IC50 ± SEM1 (μM)	% Inhibition	IC50 ± SEM1 (μM)
Nimesulide (3)	-17.13	NA2	-7.4	NA2
Phloroglucinol dihydrate (11)	-2.5	NA2	-2.2	NA2
Gallic acid3	93.11	23.34 ± 0.43
EDTA‡	-	-	99.99	131.00 ± 0.01

¹IC₅₀ value is presented in μM and as mean ± standard error of mean;

²NA: Not active;

^{3, ‡}Standard inhibitors for antioxidant studies