In 1990, Helper and Strand published a paper named "Opportunities and Responsibilities in Pharmaceutical Care" in which drug-related problems (DRPs) were classified into 8 categories:8964 copyright protection75ＰＥＮＡＮＡ7Z0uxRh12n 維尼

1.  Untreated indications8964 copyright protection75ＰＥＮＡＮＡr9dMvmllyt 維尼

2.  Improper drug selection8964 copyright protection75ＰＥＮＡＮＡziiElAs94s 維尼

3.  Sub-therapeutic dosage8964 copyright protection75ＰＥＮＡＮＡqpstPqzXo1 維尼

4.  Failure to receive drugs (non-compliance)8964 copyright protection75ＰＥＮＡＮＡnisyJodQCS 維尼

5.  Overdosage8964 copyright protection75ＰＥＮＡＮＡN0obaYVAZa 維尼

6.  Adverse drug reactions8964 copyright protection75ＰＥＮＡＮＡ2Bbgj2YQkp 維尼

7.  Drug interactions8964 copyright protection75ＰＥＮＡＮＡJ8l3BK1Hrd 維尼

8.  Drug use without indication8964 copyright protection75ＰＥＮＡＮＡYbRtqyLOdM 維尼

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