Which method refers to the internal administration of drugs affecting the body?

The method that refers to the internal administration of drugs affecting the body encompasses various routes, including inhalation and intravenous administration. This understanding is crucial in athletic training and rehabilitation, as it highlights the different ways medications can be introduced into the body to achieve the desired therapeutic effect.

Inhalation delivers drugs directly to the respiratory system, allowing for rapid absorption into the bloodstream, making it effective for treating respiratory conditions. Intravenous administration provides immediate access to the bloodstream, ensuring that the drug is quickly and completely available for systemic circulation. Each route offers unique benefits depending on the clinical situation, allowing healthcare professionals to tailor drug delivery to meet specific patient needs.

The other methods mentioned, such as injections, oral intake, and topical applications, while they can also administer drugs, do not capture the broad scope of internal administration as effectively as the inclusion of inhalation and intravenous routes does. Thus, recognizing the diversity of administration methods is essential for optimal drug therapy management in athletic training practice.