What term describes ingredients that have no effect on the therapeutic action of a drug?

The term that describes ingredients that have no effect on the therapeutic action of a drug is known as inactive ingredients. These substances serve various roles in medication formulation, such as helping to stabilize the active ingredients, improve the drug’s taste, or provide the necessary bulk to the medication. Inactive ingredients are crucial for the proper administration and efficacy of the drug but do not contribute to the intended therapeutic effect.

Active ingredients, in contrast, are the components responsible for the intended therapeutic effects of the drug. Auxiliary agents are additives that may support the action of the active ingredients but are still considered separate from the primary therapeutic component. Complementary ingredients, while they may enhance the drug's performance, do not specifically refer to non-therapeutic ingredients. Inactive ingredients are essential for the overall formulation, aiding in the delivery and usability of the medication while having no direct impact on the drug's therapeutic function.