In many cases, swallowed poisons can be absorbed by what substance mixed with water?

Activated charcoal is a substance commonly used in cases of poisoning or overdose because of its ability to bind to certain toxins in the gastrointestinal tract, thus preventing their absorption into the bloodstream. When activated charcoal is mixed with water, it creates a slurry that can be more easily ingested. The tiny pores of activated charcoal trap the poison, reducing the likelihood of systemic toxicity. This treatment is particularly effective when administered shortly after the ingestion of the poison.

Other substances listed, such as milk or ice cream, do not possess the same adsorbent properties as activated charcoal. While they may provide some relief by coating the stomach or diluting the poison, they cannot prevent absorption in the same way. Beta-blockers are a class of medications used primarily for cardiovascular issues and are not relevant in the context of treating swallowed poisons. Thus, activated charcoal stands out as the best option for mitigating the effects of swallowed poisons.