Cimetidine Interaction with Phenytoin
BMJ 282:1512, Hetzel,D.J.,et al, 1981
Vitamin B12 Deficiency:NICE Guideline Summary
BMJ 385:q1019, q1262, Sands,T.,et al, 2024
Proton Pump Inhibitor and Histamine 2 Receptor Antagonist Use and Vitamin B12 Deficiency
JAMA 310:2435-2442, Lam, J.R.,et al, 2013
Phenytoin and Ranitidine Interaction
Ann Int Med 120:892-893, Tse,C.S.T.&Iagmin,P., 1994