interaction

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interaction

 [in″ter-ak´shun]
1. the quality, state, or process of (two or more things) acting on each other.
2. reciprocal actions or influences among people, such as mother-child, husband-wife, client-nurse, or parent-teacher.
drug interaction see drug interaction.
impaired social interaction a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as a state in which an individual participates in either an insufficient or an excessive quantity of social exchange, or with an ineffective quality of social exchange. See also social isolation.

in·ter·ac·tion

(in'tĕr-ak'shŭn),
1. The reciprocal action between two entities in a common environment as in chemical interaction, ecologic interaction, and social interaction.
2. The effects when two entities concur that would not be observed with either in isolation.
3. In statistics, pharmacology, and quantitative genetics, the phenomenon that the combined effects of two causes differ from the sum of the effects separately (as in synergism and antagonism).
4. Independent operation of two or more causes to produce or prevent an effect.
5. In statistics, the necessity for a product term in a linear model.
6. The transfer of energy between elementary particles or between fields of energy.

interaction

A clinical trial term of art for a situation in which a treatment contrast—e.g., difference between investigational product and control—is dependent on a factor external to the effect (or lack thereof) of the treatment (e.g., the centre where the trial is being carried out).

A quantitative interaction refers to the case where the magnitude of the contrast differs at different levels of the factor; for a qualitative interaction, the direction of the contrast differs for at least one level of the factor.

interaction

Vox populi The reciprocal activities of 2 or more entities in a shared environment. See Adhesive interaction, Drug interaction, Hydrophobic interaction, Integrin-mediated adhesive interaction, Paracrine interaction, Social interaction, Statistical interaction, VA interaction.

in·ter·ac·tion

(in'tĕr-ak'shŭn)
1. The reciprocal action between two entities in a common environment, as in chemical, ecologic, and social interaction.
2. The effects when two entities concur that would not be observed with either in isolation.
3. statistics, pharmacology, quantitative genetics The phenomenon that the combined effects of two causes differ from the sum of the effects separately (as in synergism and antagonism).
4. Independent operation of two or more causes to produce or prevent an effect.
5. statistics The necessity for a product term in a linear model.

in·ter·ac·tion

(in'tĕr-ak'shŭn)
1. The reciprocal action between two entities in a common environment as in chemical interaction, ecologic interaction, and social interaction.
2. The effects when two entities concur that would not be observed with either in isolation.

Patient discussion about interaction

Q. Is there any possibility for drug interactions when bipolar drugs and herbal drugs are taken together. My mom is on lithium. Recently she tried some herbal treatment as it’s said to have no side effects. Is there any possibility for drug interactions when bipolar drugs and herbal drugs are taken together.

A. my recommedation is to talk to your physician before taking any OTC medication or herbal meds.

Q. Can certain fruits/veggies make Ritalin less effective? I've heard this about oranges and lemons - is it true? How about other produce? How much does it weaken Ritalin? Will taking a higher dose resolve the problem? (I currently take 10mg morning and 10mg afternoon)

A. As far as I know, oranges and lemons don't affect Ritalin. However, taking the Ritalin with food may increase the amount of drug that actually get into your body, but it depends on the specific formulation (e.g. Concerta isn't affected by food). One that takes Ritalin should avoid alcoholic drinks, since it may cause decrease activity of the brain, and also should avoid herbs of several kinds (yohimbine and ephedra).

THIS IS ONLY A GENERAL ADVICE - I haven't seen you or checked you, so if you have any concerns than you should consult a doctor.

More discussions about interaction
References in periodicals archive ?
There was also a significant two-way statistical interaction of setting with child care center, and a significant three-way statistical interaction of setting with age group and child care center.
Care needs to be exercised in interpreting the results of those statistical interactions that were significant in these models, particularly regarding the role of centers.
In addition to examining effects of BC on BP, we also hypothesized that these effects would be stronger among participants with genetic variants associated with impaired oxidative stress defense and therefore evaluated statistical interactions between BC exposure and relevant gene variants.
In addition, evocation of these performances by many novel graphs and descriptions would demonstrate generalized control by all elements of depictions of statistical interactions, which would commonly be referred to as an understanding of the interactive effects of variables on some behavior.
This pool of participants was selected for study because we assumed a wide range of knowledge regarding statistical interactions, but no information was gathered regarding that knowledge prior to participation in the study.
We performed multivariate logistic regression analyses to explore statistical interactions, in terms of both departures from additivity of relative risks (RRs) and significance of multiplicative interactions.

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