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Rapid in vitro and computer-aided method for assessing synergistic interactions between NSAIDs and analgesics
Fernando Silva1, Gustavo Costa1, Francisco Veiga1
1Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal.
Methods (San Diego, Calif.)
|September 1, 2025
Summary
This study introduces a rapid in vitro method to assess synergistic anti-inflammatory effects of nonsteroidal anti-inflammatory drug (NSAID) and analgesic combinations. Findings confirm synergistic interactions, supporting novel non-opioid pain management strategies.
Area of Science:
- Pharmacology
- Biochemistry
- Computational Biology
Background:
- Pain management often involves combining nonsteroidal anti-inflammatory drugs (NSAIDs) with analgesics like paracetamol or metamizole.
- Current combination strategies rely heavily on empirical clinical experience rather than mechanistic understanding.
Purpose of the Study:
- To develop and validate a rapid in vitro method for evaluating anti-inflammatory drug combinations.
- To quantitatively assess synergistic interactions between NSAIDs and analgesics.
- To explore alternative non-opioid analgesic strategies.
Main Methods:
- Utilized Griess and DPPH assays for rapid in vitro evaluation of NSAID-analgesic combinations.
- Employed the SynergyFinder Plus web application for computer-aided analysis of drug interactions.
- Conducted quantitative real-time PCR (qRT-PCR) to analyze anti-inflammatory effects.
Main Results:
- Demonstrated synergistic anti-inflammatory and antioxidant activities of NSAID-analgesic combinations.
- Provided quantitative assessment of synergistic drug interactions using computational tools.
- Identified ketoprofen and dexketoprofen in combination with metamizole and paracetamol as exhibiting synergistic effects.
Conclusions:
- The developed in vitro method offers a rapid approach to study synergistic drug interactions.
- Findings support the potential of NSAID-analgesic combinations for enhanced anti-inflammatory effects.
- This research is a foundational step towards understanding mechanisms of synergistic non-opioid analgesics.
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