Which term describes a routine adverse reaction, usually minor, from drug use?

Which term describes a routine adverse reaction, usually minor, from drug use?

• A. Side effect
• B. Synergistic action (Synergism)
• C. Tolerance
• D. Toxicity

Answer: (A)

A routine adverse reaction that is usually minor is called a side effect. Side effects are predictable, often mild effects that accompany many medications and are not dangerous in most cases. They differ from toxicity, which involves harmful damage to organs or bodily systems and may require urgent action. They also differ from tolerance, which is when a patient’s response to a drug diminishes over time, often needing a higher dose to achieve the same effect. And they aren’t about synergistic action, which refers to two drugs combining to produce a greater effect than expected. Examples include mild nausea with certain antibiotics, drowsiness from antihistamines, or dry mouth with some antidepressants. Recognizing side effects helps with patient counseling, monitoring, and deciding whether to adjust the dose or switch therapies.

A routine adverse reaction that is usually minor is called a side effect. Side effects are predictable, often mild effects that accompany many medications and are not dangerous in most cases. They differ from toxicity, which involves harmful damage to organs or bodily systems and may require urgent action. They also differ from tolerance, which is when a patient’s response to a drug diminishes over time, often needing a higher dose to achieve the same effect. And they aren’t about synergistic action, which refers to two drugs combining to produce a greater effect than expected. Examples include mild nausea with certain antibiotics, drowsiness from antihistamines, or dry mouth with some antidepressants. Recognizing side effects helps with patient counseling, monitoring, and deciding whether to adjust the dose or switch therapies.