What common adverse effect should a nurse inform a client taking pyrantel about?

Pyrantel is an anthelmintic drug commonly used to treat infections caused by intestinal worms. One of the notable adverse effects associated with this medication is diarrhea. This occurs as the drug acts on the parasites, leading to their expulsion from the gastrointestinal tract, which can result in increased motility and watery stools.

While other side effects such as nausea or vomiting can happen with various medications, gastrointestinal disturbances like diarrhea are particularly relevant with pyrantel, as they reflect the action of the drug in the body. It's important for nurses to prepare patients for this possible side effect so they can manage it effectively if it occurs. Monitoring hydration and overall comfort during treatment can be crucial in this context.