Fat-soluble drugs have which of the following characteristics?

Fat-soluble drugs possess the characteristic of accumulating in fatty tissues, which results in longer-lasting traces in the body. This is primarily due to their chemical structure, which allows them to dissolve in lipids or fats rather than in water. As a result, when these drugs are administered, they can be stored in adipose (fat) tissues and released into the bloodstream gradually over time. This property can lead to prolonged effects and require careful monitoring of dosage, as the potential for accumulation can also raise the risk of toxicity.

The other characteristics mentioned in the options do not accurately describe fat-soluble drugs. For instance, they are not excreted quickly from the body; instead, their fat solubility contributes to a slower elimination process. They also do not dissolve quickly in water, which is a defining feature of water-soluble drugs. Additionally, the effectiveness of a drug is not solely determined by its solubility; both fat-soluble and water-soluble drugs have their specific uses and effectiveness depending on the context of treatment.