The effectiveness and side-effects of a drug vary from one person to the next. One reason for this is that:
A) most drugs are chemically unstable, resulting in unpredictable effects.
B) most drugs interact with the diet to produce variable effects.
C) each drug tends to affect more than one kind of synapse.
D) drugs will break down neurotransmitters into different component parts in different people.

Question

Quizplus · Accepted Answer

Each drug tends to affect more than one kind of synapse, which can lead to varying effects and side-effects in different individuals. Additionally, genetic differences and variations in metabolism can also contribute to variability in drug response.

The Effectiveness and Side-Effects of a Drug Vary from One