What is the primary effect of Ipecac?

Ipecac primarily induces vomiting, and this is its main effect. It contains alkaloids such as emetine and cephaeline, which stimulate the chemoreceptor trigger zone in the brain, leading to the emetic response. This was historically used in cases of poisoning or overdose to clear the stomach of toxic substances; however, its use has declined in recent years due to safety concerns and the availability of more effective treatments.

Inducing vomiting can be an important intervention in specific clinical situations, particularly when a patient has ingested a potentially harmful substance and it is determined that vomiting is appropriate. However, it is crucial to be aware of the timing and the specific poisons involved, as not all ingested substances should be expelled by vomiting.

The other choices do not align with the primary action of Ipecac. Diarrhea is not a direct effect of Ipecac, and it does not play a role in stabilizing blood pressure or relieving pain in any significant manner. Therefore, knowing that Ipecac's primary function is to induce vomiting is essential in understanding its place in acute care, especially in a toxicological context.