Which of the following is a possible side effect of antinfectives?

Allergic reactions are indeed a well-documented side effect of many anti-infective medications, including antibiotics, antifungals, and antivirals. These reactions can range from mild symptoms, such as rashes, itching, or hives, to more severe effects like anaphylaxis, which can be life-threatening. The immune system may mistakenly identify the medication as a harmful substance, leading to this response.

Important to note is that while medications can occasionally lead to changes in appetite, muscle swelling, or vision changes, these are not commonly associated with anti-infectives. Each of these side effects can occur due to various reasons, but allergic reactions are specifically linked to the body's immune response to these drugs, making them a significant consideration in patient care and pharmacology. This connection underscores the importance of monitoring patients for any signs of allergic reactions when initiating treatment with anti-infectives.