What can result from the "additive effect" of two drugs taken together?

The additive effect of two drugs refers to the phenomenon where the combined effect of the drugs together is equal to the sum of their individual effects. This means that when two drugs are taken concurrently, their therapeutic properties can enhance one another, leading to a greater overall effect than what either drug could achieve on its own.

For example, if Drug A has a certain effect and Drug B also has a specific effect, when taken together, their effects can be additive, resulting in a more potent therapeutic outcome. This principle is important in pharmacology for understanding how to effectively combine medications to achieve optimal results, especially in managing conditions that require multiple therapies.

In contrast, other options suggest scenarios where the effects of the drugs diminish or negate one another, which does not align with the definition of an additive effect.