Not official USP-NF text
CLONIDINE HYDROCHLORIDE AND CHLORTHALIDONE TABLETS
PF	LGS#	Brand	Type of Test	Additional Information
12(2)	L7	HS-5 C8	Assay	Alternative column.
12(2)	L7	Partisil C8	Assay	10-cm
9(2)	L7	Supelcosil LC-8-DB	Assay	Alternative column.
9(2)	L7	Supelcosil LC-8	Assay, Identification, Dissolution, Uniformity of dosage units	15-cm analytical column; 5-cm, 30--50-µm, guard column.