What would a nurse cite as a reason to discard leftover antibiotics?

The rationale for discarding leftover antibiotics primarily centers on their potential loss of effectiveness over time. Antibiotics, like many pharmaceuticals, can degrade or change chemically, leading to decreased potency. This degradation may not only render the antibiotics less effective in treating infections but can also contribute to the development of antibiotic resistance if they are used despite being ineffective.

While storage costs and potential contamination are valid concerns, the critical factor for discarding antibiotics is their efficacy. Contamination can be a reason for disposal, but it would typically be less of a concern than the antibiotics simply losing their therapeutic value. Misuse by patients, while a relevant consideration in the broader context of public health and responsible medication use, does not directly justify discarding leftover antibiotics. The primary concern remains the assurance that any prescribed medication retains its intended effectiveness when needed for treatment.