Relationship between polypharmacy and adverse events

Area of Science:

• Pharmacovigilance
• Drug Safety
• Clinical Pharmacology

Background:

• Polypharmacy is common in clinical practice, increasing the potential for adverse drug events (ADEs).
• Understanding the relationship between the number of drugs used and specific ADEs is crucial for patient safety.

Purpose of the Study:

• To investigate the association between polypharmacy and various adverse events.
• To identify specific risks related to the number of drugs consumed.

Main Methods:

• Retrospective analysis of data from three spontaneous adverse event reporting system databases.
• Multivariate logistic regression models were employed to assess the association between drug count and ADEs.

Main Results:

• A significant association was found between an increased number of drugs and higher risks of hepatic disorders.
• Similarly, renal disorders showed an increased risk correlated with the number of drugs used.
• The study also highlighted the need for vigilance regarding drugs causing hypersensitivity and extrapyramidal syndrome.

Conclusions:

• Decreasing the number of prescribed drugs may be an effective strategy to reduce the incidence of hepatic and renal disorders.
• Clinical attention should focus on identifying and managing specific medications associated with hypersensitivity and extrapyramidal syndromes.