What does 'time course' refer to when discussing drugs?

'Time course' in the context of drugs refers to the administration of a drug and its effect over time. This concept encompasses how long it takes for a drug to begin working, how long its effects last, and the overall duration of action. Understanding the time course is essential for healthcare professionals as it informs decisions regarding dosing schedules, expected onset of effects, and potential cumulative impacts or side effects as subsequent doses are administered.

The time course provides insights into the pharmacokinetics of a drug, including absorption, distribution, metabolism, and excretion, which all contribute to the drug's overall therapeutic effectiveness and safety profile. Recognizing how these factors interplay over a specified duration allows clinicians to optimize treatment regimens for their patients.