BP
British Pharmacopoeia
allopurinol impurity A (BP 831)
allopurinol impurity B (BP 832)
cetirizine hydrochloride (BP 837)
mirtazapine (BP 842)
tibolone (BP 848)
quinine sulfate (BP 862)
loratadine (BP 874)
methyl 3, 5-diamino-6-chloropyrazine-2-carboxylate (BP 920)
calcium folinate (BP 923)