Stability Indicating Liquid Chromatographic Method for Estimation of Trihexyphenidyl Hydrochloride and Risperidone in Tablet Formulation: Development and Validation Consideration

Table 2

Assay results of tablet formulation by RP-HPLC method.

	Name of drug		Amount found		% Assay ± SD (𝑛=3)
	RSP	THP	RSP	THP	RSP	THP
Tablet	2 mg	2 mg	2.02	1.99	99.83±0.02	100.16±0.03
	2 mg	2 mg	1.98	2.04
	2 mg	2 mg	1.99	1.98