Readers ask: What kind of drug effect occurs when one drug cancels or blocks the effect of another?

When one drug cancels out or lessens another drug’s effect we call that?

In the case of antagonistic suppression, one drug suppresses the action of the other, producing a “hyper-antagonism” with a maximum combination index larger than 2.

Which effect takes place when one drug interferes with the action of another drug quizlet?

One drug interferes with the action of another, causing neutralization or a decrease in the effect of one drug.

When one drug interferes with the action of another?

Drugdrug interactions (DDIs) occur when one drug interferes with the pharmacological activity of another [58]. These interactions can result in decreased effectiveness and/or increased toxicity. Additionally they may result in the development of ADRs, morbidity, hospitalizations and death [59].

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What drug tolerance means?

Tolerance happens when a person no longer responds to a drug in the way they did at first. So it takes a higher dose of the drug to achieve the same effect as when the person first used it.

What is the most common type of drug interaction?

Pharmacological receptors: Receptor interactions are the most easily defined, but they are also the most common. From a pharmacodynamic perspective, two drugs can be considered to be: Homodynamic, if they act on the same receptor.

What medication should not be taken together?

Mixing Drugs and Alcohol

Don’t mix these together.” Another drug that shouldn’t be mixed with alcohol: acetaminophen (Tylenol) and alcohol, because it can harm your liver. Cough and cold preparations with antihistamines shouldn’t be mixed with alcohol because they will amplify the sedative effects, Grissinger says.

What variables affect a medications actions?

Factors affecting drug action

  • Age Factors.
  • Aged.
  • Body Weight.
  • Child.
  • Drug Interactions.
  • Drug Tolerance.
  • Female.
  • Genetics, Medical.

Which is an example of a black box warning by the Food and Drug Administration FDA )?

For example, several kinds of combination birth control pills carry a black box warning related to cardiovascular risks associated with them. The warning also strongly advises that women who use them not smoke, as cigarette smoking is known to increase the risk of those side effects.

Which agency is responsible for regulating the development and marketing of drugs?

The Food and Drug Administration (FDA), a regulatory agency within the Department of Health and Human Services, regulates the safety and effectiveness of drugs sold in the United States. FDA divides that responsibility into two phases.

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What is a major drug interaction?

Drug interactions that are of greatest concern are those that reduce the desired effects or increase the adverse effects of the drugs. Drugs that reduce the absorption or increase the metabolism or elimination of other drugs tend to reduce the effects of the other drugs.

What is an antagonistic drug interaction?

An interaction between two or more drugs that have opposite effects on the body. Drug antagonism may block or reduce the effectiveness of one or more of the drugs.

What is synergistic drug interaction?

Synergism, Synergy. An interaction between two or more drugs that causes the total effect of the drugs to be greater than the sum of the individual effects of each drug. A synergistic effect can be beneficial or harmful.

What are the 2 types of tolerance?

There are two types of drug tolerance: physiological and behavioral.

What is the result of drug tolerance?

Tolerance is a person’s diminished response to a drug, which occurs when the drug is used repeatedly and the body adapts to the continued presence of the drug. Resistance refers to the ability of microorganisms or cancer cells to withstand the effects of a drug usually effective against them.

What is tolerance in mental health?

In a social context, tolerance could be understood as a readiness to allow others to make choices about lifestyle and behaviour, subject to limits that can be restricted to such evils as violence and prejudice or extended to exclude other attitudes or behaviours that might compromise or threaten the common good.

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