What is the most common route of drug administration?

The most common route of drug administration is oral. This method is frequently used because it is convenient, easy to administer, and generally safe. Patients can take medications in pill, tablet, or liquid form, making it accessible for all ages. The oral route allows for a wide range of formulations and dosages, facilitating adherence to treatment plans.

Additionally, oral medications undergo first-pass metabolism in the liver, which can modify the drug's effectiveness, yet they still remain a preferred choice due to the less invasive nature of swallowing a pill compared to other methods. The oral route's practicality contributes to its popularity among healthcare providers and patients alike, reinforcing its position as the most common method for administering medications.