Why should vomiting not be induced after the ingestion of glyphosate herbicides?

It risks liquid inhalation leading to severe chemical pneumonitis.

Inducing vomiting is strictly discouraged following ingestion because it creates a significant risk of aspiration. If the herbicide is inhaled into the lungs during the vomiting process, it causes chemical pneumonitis, a severe and potentially life-threatening inflammation of the lung tissue. This complication is often far more dangerous than the ingestion itself. Emergency medical professionals determine the appropriate strategy, such as gastric lavage or activated charcoal, based on the timing and concentration of the ingestion.