Tag: Routes of administration

Over 90% of orally administered drugs are absorbed through passive diffusion. In pharmacology, **what is meant by drug absorption?** It is the critical process by which a drug moves from its site of administration into the systemic circulation, a fundamental step in determining the medication's effectiveness.

In 2020, 40.3 million people in the United States had a substance use disorder [1.6.2]. Understanding **what are the 4 ways drugs of abuse enter the body** is crucial for recognizing the varying risks and speeds of action associated with substance use.

The global market for drug delivery devices is projected to reach US$35.67 billion in 2025, highlighting the critical role these systems play in modern medicine. Understanding **what are the five drug delivery methods?** is essential for appreciating how medications achieve their therapeutic effects.

In emergency situations, the route of medication administration can be a critical factor determining patient outcomes. Studies show that intravenous (IV) injection delivers medication to the bloodstream with 100% bioavailability, making it the fastest method of drug administration for achieving a systemic effect.

The oral route is the most common method of drug administration, prized for its convenience and patient acceptance [1.5.2, 1.5.5]. When a prescription says to take a medication PO, it is providing a crucial instruction about this method. So, **what does PO by mouth mean?** It is an abbreviation for the Latin phrase *per os*, which literally translates to 'by mouth' [1.2.2, 1.3.3].