Related Experiment Video
Updated: Mar 12, 2026

12:08
Diagonal Method to Measure Synergy Among Any Number of Drugs
Published on: June 21, 2018
19.7K
Evaluation of resources for analyzing drug interactions
Journal of the Medical Library Association : JMLA
|November 9, 2016
Summary
Micromedex Drug Interactions and Lexicomp Interactions offer the best scope and completeness for analyzing drug interactions. While consistency scores were low, Micromedex provided the highest overall consistency among the evaluated drug information resources.
Area of Science:
- Pharmacology
- Health Informatics
- Drug Safety
Background:
- Accurate drug interaction analysis is crucial for patient safety and effective pharmacotherapy.
- Numerous drug information resources exist, but their comparative performance in evaluating drug interactions is not well-established.
- Understanding the scope, completeness, and consistency of these resources is vital for clinical decision-making.
Purpose of the Study:
- To evaluate seven prominent drug information resources for their scope, completeness, and ease of use in analyzing drug interactions.
- To determine the consistency of interaction information across these seven resources.
- To identify leading resources for comprehensive drug interaction analysis.
Main Methods:
- A cross-sectional study analyzed 100 drug-drug and drug-dietary supplement interactions.
- Seven resources were assessed: Lexicomp Interactions module, Micromedex Drug Interactions, Clinical Pharmacology Drug Interaction Report, Facts & Comparisons eAnswers, Stockley's Drug Interactions, Drug Interactions Analysis and Management, and Drug Interaction Facts.
- Two independent reviewers collected data using a standardized form for each interaction and resource.
Main Results:
- Lexicomp Interactions, Clinical Pharmacology Drug Interaction Report, and Micromedex Drug Interactions demonstrated superior scope.
- Micromedex Drug Interactions, Lexicomp Interactions, and Facts & Comparisons eAnswers exhibited higher completeness.
- Ease of use was comparable across resources; Micromedex Drug Interactions showed the highest consistency, despite overall low scores.
Conclusions:
- Clinical Pharmacology Drug Interaction Report, Lexicomp Interactions, and Micromedex Drug Interactions excel in interaction scope.
- Micromedex Drug Interactions and Lexicomp Interactions lead in completeness of drug interaction data.
- Micromedex Drug Interactions offers the highest consistency, though overall consistency among resources requires improvement.
Related Concept Videos
Drug toxicity: Drug–Drug Interaction
208
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...
208
Pharmacokinetics: Drug–Drug Interactions
600
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...
600
Agonism and Antagonism: Quantification
1.3K
When drugs are administered, they can elicit either an agonist or antagonist effect on the body. Agonism occurs when a drug activates a specific receptor, triggering a biological response. On the other hand, antagonism happens when a drug binds to the same receptors but blocks their activation, thereby preventing a biological response.
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
1.3K
Pharmacokinetics: Drug–Food and Drug–Viral Interactions
432
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...
432
Drug Toxicity: Risk factors
90
Adverse Drug Reactions (ADRs) are potential complications that arise during pharmacotherapy, influenced by multiple risk factors. Age plays a significant role; both neonates and the elderly are at heightened risk due to their respective immature and diminished metabolic and elimination processes. Gender also impacts ADRs, with females experiencing a 1.5 to 1.7-fold greater risk than males, which may be linked to pharmacokinetic, pharmacodynamic, and hormonal differences. Notably, neonates, the...
90
Drug-Receptor Interactions
8.0K
Drug-receptor interaction describes the binding of receptors by drugs, but not all drug-receptor interactions result in activation and tissue response. For instance, the binding of agonists activates the receptor to generate a cellular reaction, while antagonists bind to receptors without causing their activation.
Several parameters, such as the drug's affinity for its receptor and its efficacy, which is its ability to activate the receptor, determine the drug's effect on the tissue....
Several parameters, such as the drug's affinity for its receptor and its efficacy, which is its ability to activate the receptor, determine the drug's effect on the tissue....
8.0K

