What is the term for an increase in enzyme activity that results in greater metabolism of drugs?

The term that describes an increase in enzyme activity leading to enhanced metabolism of drugs is known as enzyme induction. This process occurs when certain substances, often drugs or environmental chemicals, lead to an upregulation of enzyme production, particularly those in the liver responsible for drug metabolism, such as cytochrome P450 enzymes. As a result, the body becomes more efficient at breaking down drugs, which can decrease the drug's therapeutic effect if not monitored, as the drugs may be metabolized and eliminated more quickly.

In contrast, enzyme inhibition refers to the process where the activity of enzymes is reduced, slowing down drug metabolism. This can lead to elevated levels of the drug in the system, potentially causing toxicity. Enzyme metabolism itself typically describes the general processes by which enzymes facilitate biochemical reactions but does not specifically refer to an increase in activity. Enzyme diffusion is not a term commonly associated with drug metabolism or enzymatic activity. Therefore, the correct term for an increase in enzyme activity is indeed enzyme induction.