Not official USP-NF text
TRIHEXYPHENIDYL HYDROCHLORIDE
PF LGS# Brand Type of Test Additional Information
7(4) G1 None Cited Assay 3%
16(4) L1 Pecosphere 3x8CR C18 Assay 3-µm, 8-cm
6(4) S1 None Cited Assay NULL
6(4) G1 None Cited Assay and Identification 3%
7(4) S1AB None Cited Assay and Identification
18(3) G43 None Cited Organic volatile impurities See Method IV 467