Related Experiment Video
Updated: Nov 23, 2025
12:00
Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
Published on: July 5, 2017
19.5K
Food-Drug Interactions with Fruit Juices
Zvonimir Petric1, Irena Žuntar2, Predrag Putnik3
1Unit of Pharmacokinetics and Drug Metabolism, Department of Pharmacology at the Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, 40530 Göteborg, Sweden.
Foods (Basel, Switzerland)
|December 30, 2020
Summary
Fruit juices can cause significant food-drug interactions by affecting how the body processes medications. These interactions, often involving phytochemicals and drug metabolism enzymes, can lead to adverse events or reduced drug effectiveness.
Area of Science:
- Pharmacology
- Nutritional Science
- Drug Metabolism
Background:
- Fruit juices contain numerous phytochemicals.
- These compounds can interact with medications, leading to clinically significant food-drug interactions.
- Mechanisms often involve interference with cytochrome P450 enzymes (CYPs) or drug transporters.
Purpose of the Study:
- To raise awareness regarding potential pharmacological interactions between fruit juices and drugs.
- To highlight the clinical significance of these interactions and potential adverse events.
Main Methods:
- Review of existing literature on fruit juice-drug interactions.
- Analysis of mechanisms involving phytochemicals, CYPs, and drug transporters.
- Examination of altered pharmacokinetic parameters such as area under the concentration-time curve and bioavailability.
Main Results:
- Fruit juice phytochemicals can alter drug metabolism and transport.
- Altered drug exposure can result in suboptimal pharmacological effects or toxicity.
- Commonly affected pharmacokinetic parameters include bioavailability and maximum plasma concentration.
Conclusions:
- Food-drug interactions involving fruit juices are complex and challenging to predict.
- Limited study data, small sample sizes, and inter-individual variability contribute to prediction difficulties.
- Increased awareness is crucial for healthcare professionals and patients to mitigate risks associated with fruit juice consumption and medication use.
Related Concept Videos
01:26Pharmacokinetics: Drug–Food and Drug–Viral Interactions
82
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...
82
01:25Pharmacokinetics: Drug–Drug Interactions
131
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...
131
01:58Fruit Development, Structure, and Function
24.1K
Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
24.1K
01:27Combined Effects of Drugs: Synergism
5.9K
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...
5.9K
01:23Factors Affecting Protein-Drug Binding: Drug Interactions
424
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...
424
01:30Combined Effects of Drugs: Antagonism
10.5K
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...
10.5K