Not official USP-NF text
HYDROXYZINE HYDROCHLORIDE
PF LGS# Brand Type of Test Additional Information
32(5) L3 Chrompack CP MicroSpher Si Assay & Chrom. purity 4.6 mm x 25 cm, 5 or 10 µm. Alternative column Econosphere Silica, same dimensions, manufacturer Grace - Alltech.
11(3) L3 Guard-PAK Chromatographic purity 5-mm x 6-mm guard column; deleted 15(3)
11(3) L3 Chrompack CP MicroSpher Si Chromatographic purity Two 10-cm x 3-mm analytical columns in series
10(3) L2 Permaphase ETH Limit of . . . . . . . . . deschlorohydroxyzine and ethoxyhydroxyzine hydrochlorides; 60-cm; deleted 11(3)
16(3) G27 None Cited Organic volat. impurities See Method I 467