Class | Drug’s effect | Influence on comorbid disease |
---|---|---|
A | Favourable | Drugs with pronounced positive effects |
B | Possible | Drugs may have a mild positive effects |
C | Neutral | Drugs without any significant effect or contradictory effect on comorbid disease |
D | Undesirable | Drugs with possible rare non-severe adverse effects or unexplored drugs |
X | Unfavourable | Drugs with high incidence (≥ 1%) of severe adverse effects |