Table 1. Summary of drug-drug/drug-excipient compatibility study.

S.No.	Samples	Colour and Texture	Week				Assay (%)	% RSD
			1	2	3	4
1	Curcumin*	Bright yellow-orange powder	NSVC				98.43	0.91
2	Piperine*	Faint yellow-off-white crystals	NSVC				98.98	1.23
3	Quercetin*	Yellow-green powder	NSVC				99.11	1.98
4	Silibinin*	White powder	NSVC				99.56	0.63
5	Polymer*	White powder	NSVC				-	-
6	Poloxamer 188*	White powder	NSVC				-	-
7	ß-cyclodextrin*	White powder	NSVC				-	-
8	Curcumin + Piperine@	Bright yellow-orange powder	NSVC				97.91 & 98.17	1.39 & 0.86
9	Curcumin + Quercetin@	Yellowish green powder	NSVC				98.14 & 100.52	0.76 & 0.63
10	Curcumin + Silibinin@	Bright yellow powder	NSVC				99.02 & 98.71	0.49 & 1.59
11	Curcumin + Polymer@	Bright yellow powder	NSVC				100.17	1.79
12	Curcumin + Poloxamer@	Bright yellow powder	NSVC				99.49	0.61
13	Curcumin + ß-cyclodextrin@	Bright yellow powder	NSVC				100.41	0.52
14	Piperine + Polymer@	White to off-white powder	NSVC				98.42	0.65
15	Piperine + Poloxamer@	White to off-white powder	NSVC				99.83	1.66
16	Piperine + ß-cyclodextrin@	White to off-white powder	NSVC				100.10	0.73
17	Quercetin + Polymer@	Faint greenish powder	NSVC				98.29	1.19
18	Quercetin + Poloxamer 188@	Faint greenish powder	NSVC				97.84	1.21
19	Quercetin + ß-cyclodextrin@	Faint greenish powder	NSVC				100.76	0.76
20	Silibinin + Polymer@	White powder	NSVC				99.56	0.63
21	Silibinin + Poloxamer 188@	White powder	NSVC				98.09	1.55
22	Silibinin + ß-cyclodextrin@	White powder	NSVC				100.50	1.75
*Refers to 100 mg of samples; @Refers to 100 mg + 100 mg of samples in combination; NSVC: No significant visual changes; Polymer: Poly(butyl methacrylate-co-(2-dimethylaminoethyl) methacrylate-co-methyl methacrylate)