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Table 5 The most frequently prescribed PIMs in older patients visiting GOPCs in 2014

From: Comparison of adaptive versions of the Hong Kong-specific criteria and 2015 Beers criteria for assessing potentially inappropriate medication use in Hong Kong older patients

PIMs independent of diagnoses
PIMs Prevalence Adaptive Beers criteria Adaptive Hong Kong-specific criteria
Chlorpheniramine 35.41%
Promethazine 8.73%
Diphenhydramine 8.44%
Methyldopa 4.07%
Metoclopramide 3.01%  
Zopiclone 2.15%  
Dexchlorpheniramine 1.92%
Lorazepam 1.16%
Indomethacin 1.14%
Amitriptyline 1.07%
PIMs due to disease-drug interactions
PIMs Prevalence Adaptive Beers criteria Adaptive Hong Kong-specific criteria
Benign prostatic hyperplasia-anticholinergics, TCAs 2.60%
Chronic constipation-anticholinergics, CCBs, methyldopa, opioids, TCAs 2.50%  
Lower urinary tract symptoms-anticholinergics, chlorpromazine, TCAs 1.26%