Cetirizine is an antihistamine commonly used to treat allergies. The exact lethal dose can vary depending on individual factors such as age, weight, health status, and sensitivity to the medication. While there is no established "lethal dose" for cetirizine specifically in humans, it is generally considered to have a high safety margin.
Overdosing on cetirizine can lead to serious side effects, including extreme drowsiness, confusion, or rapid


