What characterizes Category C drugs in relation to pregnancy?

Category C drugs are characterized by the need to weigh the potential benefits against the associated risks when considering their use during pregnancy. This classification indicates that there have been no well-controlled studies in humans, but animal studies may show an adverse effect on the fetus. However, these drugs may still be prescribed if the potential benefit, such as treating a serious condition, is deemed to outweigh the potential risks to the developing fetus. This highlights the importance of clinical judgment and individualized care when managing medications for pregnant individuals.

In contrast, the other options do not accurately reflect the characteristics of Category C drugs. There are situations where these medications can be necessary, demonstrating that they are not outright discouraged as indicated in one option. Furthermore, Category C does not imply that animal studies exclusively show no harm; rather, the presence of adverse effects may warrant consideration for human use based on specific circumstances.