Which term describes the increased effect when two drugs are taken together?

Which term describes the increased effect when two drugs are taken together?

• A. Synergism
• B. Tolerance
• C. Potentiation
• D. Antagonism

Answer: (A)

The idea being tested is how drugs interact when taken together. When two drugs produce an effect that is greater than the sum of their individual effects, that is called synergy. This means the combination produces a stronger overall response than you’d expect by adding each drug’s separate effect. A helpful way to remember this is: synergy = the two drugs amplify each other’s action. Telling why the other terms don’t fit: tolerance is when the body becomes less responsive to a drug over time, requiring more of the drug for the same effect. Antagonism is when one drug blocks or reduces the effect of another. Potentiation is when one drug that may not have much effect on its own enhances the effect of another drug that is active, which is a more specific scenario than the general increased effect described here. In many analgesic combinations, like certain pain relievers, the combined effect is greater than either drug alone due to synergistic interaction.

The idea being tested is how drugs interact when taken together. When two drugs produce an effect that is greater than the sum of their individual effects, that is called synergy. This means the combination produces a stronger overall response than you’d expect by adding each drug’s separate effect. A helpful way to remember this is: synergy = the two drugs amplify each other’s action.

Telling why the other terms don’t fit: tolerance is when the body becomes less responsive to a drug over time, requiring more of the drug for the same effect. Antagonism is when one drug blocks or reduces the effect of another. Potentiation is when one drug that may not have much effect on its own enhances the effect of another drug that is active, which is a more specific scenario than the general increased effect described here.

In many analgesic combinations, like certain pain relievers, the combined effect is greater than either drug alone due to synergistic interaction.