Which term refers to the interaction of two or more drugs producing a greater effect than the sum of their individual effects?

The term that refers to the interaction of two or more drugs producing a greater effect than the sum of their individual effects is "synergistic." When drugs are synergistic, their combined effect is enhanced, meaning that together they produce a more potent outcome than what would be expected if their effects were simply added together. This phenomenon can be particularly utilized in pharmacology to improve treatment efficacy, allowing for lower dosages of each drug to be used while still achieving the desired therapeutic effect.

In contrast, antagonistic interactions occur when one drug counteracts the effects of another, leading to a diminished overall effect. Sequential refers to the administration of drugs in a specific order but does not imply any enhancement of effects. Dependent does not specifically relate to drug interactions in this context. Thus, the focus on the synergistic effect accurately captures the idea of enhanced therapeutic outcomes through drug interactions.