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. 2017 Oct 27;5(4):60. doi: 10.3390/pharmacy5040060

Table 3.

Types and prevalence of PIs (n = 313) in 213 patients.

Type of PI No. of PIs (%)
Duplication 87 (27.8%)
 Co-prescribe same drug class 45 (14.38%)
 Co-prescribe same drug 42 (13.42%)
Poor Prescribing Practice 41 (13.1%)
 Frequency of administration unclear 24 (7.67%)
 Dose charted unclear 13 (4.15%)
 Drug charted unclear 4 (1.28%)
Frequency 1 38 (12.14%)
 More than approved normal frequency 21 (6.71%)
 Less than approved normal frequency 17 (5.43%)
Dose 1 33 (10.54%)
 More than approved normal dose 25 (7.99%)
 Less than approved normal dose 8 (2.56%)
Interaction 1 32 (10.22%)
 Pharmacokinetic 30 (9.58%)
 Pharmacodynamic 2 (0.64%)
Timing 1,2 27 (8.63%)
Review Therapy 23 (7.35%)
Omission 3 12 (3.83%)
Route 4 (1.28%)
Duration 3 (0.96%)
Other 4 13 (4.15%)
Total 313 (100%)

PI: pharmacist intervention; PIs: pharmacist interventions. 1 As per Summary of Product Characteristics; 2 As per British National Formulary 71 [12]; 3 Relative to admission notes, this intervention was opportunistic; 4 For example, this includes medicines incorrectly transcribed.