Figure 2From: Drug - related emergency department visits by elderly patients presenting with non-specific complaintsPCNE Classification and percentage of all our identified drug-related problems (DRP), N = 77. It has six primary domains for problems: P1 = adverse drug reactions, P2 = Drug choice problem, P3 = Dosing problem, P4 = Drug use problem, P5 = Interactions, P6 = other.Back to article page