The number of Alprax (alprazolam) tablets that can cause death depends on various factors such as the age, weight, and health status of the person taking the drug, as well as the presence of other drugs or alcohol in their system. Taking too much Alprax can lead to an overdose, which can cause respiratory depression, coma, and even death. It is important to always take medication as prescribed by a doctor and not to exceed the recommended dose. If you or someone you know is experiencing an overdose, it is important to seek medical attention immediately by calling emergency services or going to the nearest emergency room.