👉 In pharmacology and biochemistry, a "metabolite" is an intermediate product of a biochemical reaction. The term "antimetabolite" refers to a drug that inhibits the activity or metabolism of another drug. This can be particularly important in the context of treating certain diseases where one drug may cause side effects or resistance to another. For example, a drug used to treat cancer might inhibit the activity of an enzyme involved in the production of tumor cells. If this drug is taken