New York State Emergency Medical Technician (EMT) Practice Exam

What are the effects experienced after taking diphenhydramine (Benadryl) for an allergic reaction an example of?

1. Side effect

2. Untoward effect

3. Therapeutic effect

4. Unpredictable effect

The correct answer is: Side effect

The effects experienced after taking diphenhydramine (Benadryl) for an allergic reaction are classified as side effects. Side effects are secondary effects that may accompany the primary therapeutic action of a medication. In the case of diphenhydramine, its primary purpose is to alleviate symptoms of allergic reactions by blocking histamine receptors, but it also has common side effects such as drowsiness, dry mouth, and dizziness. These side effects arise because the medication doesn’t only target the intended symptoms (such as itching or swelling) but can also affect other systems in the body. Thus, while the medication effectively addresses the allergic reaction, users should be aware of the additional effects that may occur as a result of its action in the body. Understanding side effects is crucial for both patients and healthcare providers in making informed decisions about treatments and managing any potential impact on daily activities or safety.