Transdermal administration is a drug delivery method that involves the application of a medication on the skin to deliver therapeutic agents directly into the bloodstream.

A drug interaction occurs when two or more drugs interact in the body, affecting the efficacy or safety of one or both medications.

Drug monitoring, in the context of healthcare and pharmacology, refers to the process of tracking and evaluating the use, safety, efficacy, and overall impact of medications in clinical practice.

Targeted therapy is a type of cancer treatment that uses drugs or other substances to specifically attack cancer cells without harming normal cells as much as possible.

A drug delivery system is a method or technology used to transport a pharmaceutical compound into the body to achieve a therapeutic effect.

Drug safety evaluation is the process of assessing the safety profile of a pharmaceutical compound throughout its development, from preclinical stages to post-marketing surveillance.

Pharmacodynamics is the study of the biochemical and physiological effects of drugs on the body, including the mechanisms of action and the relationship between drug concentration and effect.

Pharmacokinetics (PK) is the study of how a drug moves through the body, which includes the processes of absorption, distribution, metabolism, and excretion.

Bioequivalence is a pharmacological term used to describe the similarity in the pharmacokinetic profiles of two drug products, usually a brand-name drug and a generic drug.

Bioavailability refers to the extent and rate at which the active ingredient of a drug or nutrient is absorbed into the circulation and becomes available at the site of action within the body.

Preclinical research refers to the scientific studies conducted on potential drugs or medical devices before they are tested in humans.

Active Pharmaceutical Ingredient (API) refers to the main substance in a drug that provides the therapeutic effect.