Related Experiment Video
Updated: Aug 15, 2026
10:35
Assessment of Antibody-based Drugs Effects on Murine Bone Marrow and Peritoneal Macrophage Activation
Published on: December 26, 2017
[Antibiotics and anti-inflammatory agents: drug interactions]
1Service de Médecine Interne, CHU Bichat-Claude Bernard, Paris.
Pathologie-Biologie
|April 1, 1990
Summary
Anti-inflammatory drugs (AID) can alter antibiotic (AB) effectiveness and toxicity. Further research into these drug interactions is crucial for optimizing bacterial infection treatment.
Area of Science:
- Pharmacology
- Microbiology
- Clinical Medicine
Context:
- Antibiotics (AB) are frequently co-prescribed with anti-inflammatory drugs (AID), including steroidal and non-steroidal agents.
- The clinical utility of AID in managing bacterial infections is currently established only in specific scenarios.
- Understanding the interplay between AID and AB is essential for effective patient management.
Purpose:
- To explore the mechanisms by which AID influence antibiotic pharmacokinetics and pharmacodynamics.
- To investigate the impact of AID on the efficacy and toxicity of antibiotics in vivo.
- To examine how certain antibiotics affect the metabolism and kinetics of anti-inflammatory steroids.
Summary:
- Anti-inflammatory drugs (AID) can modify antibiotic (AB) kinetics through various mechanisms, potentially affecting their in vivo activity. Examples include interactions between cephalosporins and phenylbutazone or diclofenac.
- Conversely, some antibiotics can alter the metabolism and/or kinetics of specific steroids, indicating a bidirectional interaction.
- The influence of AID on AB toxicity, particularly concerning kidney and central nervous system effects, has been examined, highlighting potential adverse outcomes.
Impact:
- Clarifying AB/AID kinetic interactions is vital for understanding how AID may improve outcomes in infectious processes.
- This research can inform clinical guidelines for concurrent prescribing of antibiotics and anti-inflammatory drugs.
- Further investigation may lead to improved therapeutic strategies for bacterial infections treated with combination drug regimens.
More Related Videos
Related Concept Videos
01:30Combined Effects of Drugs: Antagonism
The combined effects of drugs can result in various interactions, of which an important type is antagonism. Antagonism is a mechanism where one drug inhibits or counteracts the effects of another drug. Antagonism can occur through various means, including receptor binding, allosteric modulation, functional interaction, chemical reactions, and pharmacokinetic processes.
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
01:27Combined Effects of Drugs: Synergism
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
01:23Factors Affecting Protein-Drug Binding: Drug Interactions
Drug interactions are a critical aspect of pharmacology and can occur when two or more drugs compete for the same binding site. This competition can result in one drug displacing another, altering the effect of the displaced drug. Drug interactions are complex processes that rely heavily on how much of the displacer drug is present and how strongly it can bind to the same sites as the displaced drug.
Displacement interactions can have varying outcomes, ranging from toxicity to virtually...
Displacement interactions can have varying outcomes, ranging from toxicity to virtually...
01:25Pharmacokinetics: Drug–Drug Interactions
Drug interactions occur when the pharmacological effect of one drug is altered by another substance, either enhancing or diminishing its activity. The drug whose activity is altered is known as the object drug, and the substance causing the alteration is called the agent drug or the precipitant. The net effects of these interactions are mostly undesirable, leading to decreased effectiveness or increased adverse effects. In rare cases, interactions can be beneficial, such as the enhanced...
01:26Pharmacokinetics: Drug–Food and Drug–Viral Interactions
A drug interaction occurs when the concurrent use of another drug, food, or an external substance alters the pharmacological activity of a drug. This interaction can modify the action of the original drug, affecting its effectiveness and safety.Drug–food interactions are significant as they impact drug absorption, metabolism, and excretion. For example, grapefruit juice is a well-known disruptor of drug metabolism. It inhibits the cytochrome P450 3A4 enzyme, crucial for the metabolism of many...
01:30Drug toxicity: Drug–Drug Interaction
Drug–drug interactions can precipitate toxicity through multiple mechanisms. Absorption interactions alter how drugs enter the body, exemplified when ranitidine increases the absorption of basic drugs, while cholestyramine decreases the levels of propranolol. Protein binding interactions occur when drugs share the same binding sites on plasma proteins. Drugs like aspirin and warfarin, when bound in excess, can lead to increased free drug concentrations, enhancing the potential for...