Table 4.

Drugs for which no adjustment was recommended: how were they classified in the other sources

Source in which no adjustment was required	British National Formulary				Martindale				AHFS Drug Information 2004				Drug Prescribing in Renal Failure
	M	N	Q	V	M	N	Q	V	M	N	Q	V	M	N	Q	V
British National Formulary (n=43)	—	—	—	—	0	32	11	0	6	30	7	0	22	17	3	1*
Martindale (n=38)	1	32	4	1†	—	—	—	—	5	30	3	0	22	13	2	1*
AHFS Drug Information 2004 (n=39)	0	33	5	1‡	0	31	8	0	—	—	—	—	18	16	4	1*
Drug Prescribing in Renal Failure (n=32)	0	17	13	2§	0	13	17	2¶	1	16	15	0	—	—	—	—

M=missing. N=no adjustment required. Q=adjustment required (includes Q: quantitative recommendations, NQ: non-quantitative recommendations, and C: use with caution). V=contraindicated/avoid.

^*Terbutaline.

^†Lercanidipine.

^‡Ephedrine.

^§Naproxen, warfarin.

^¶Heparin, warfarin.