Not official USP-NF text
TRIHEXYPHENIDYL HYDROCHLORIDE
PF LGS# Brand Type of Test Additional Information
6(4) G1 None Cited Assay 3%
16(4) L1 Pecosphere 3x8CR C18 Assay 3-µm, 8-cm
6(4) S1 None Cited Assay Reprinted 7(2)
7(4) S1AB None Cited Assay Reprinted 13(3), 14(5)
7(4) G1 None Cited Assay 3%
11(5) S1AB None Cited Identity See Assay
11(5) G1 None Cited Identity See Assay
18(3) G43 None Cited Organic volat. impurities See Method IV 467