Question

When one drug adds or magnifies the effect of another drug it is called?

Answer 1

The effect of one drug adding or magnifying the effect of another drug is called as synergy and this kind of interaction between the drugs is called as synergism and this can be dangerous and fatal. Sometimes the opposite happens one drug neutralizes the other one which is called as Inverse Agonist.

Answer 2

Answer: Drug potentiation

Explanation:

The phenomenon in which one drug enhances the effect of another drug.

As a result of this addition, the total effect of combination of these drugs is more than the effect of each drug alone.

Example of such drugs are Vistaril and Demorol.

So, this combination of drugs is known as Drug Potentiation.