What does SPECT stand for? SPECT stands for Single Photon Emission Cardiac Tomography (nuclear cardiology) Suggest new definition This definition appears very rarely and is found in the following Acronym Finder categories:
Expert: Dr. Arun Phophalia replied 5 years ago. Greetings. In a study the average lethal dose for Xanax has been found as 22 mg. But death can occur at 10 mg single dose. With alcohol, there is further central nervous system depression and the lethal dose can be far less. Though for it (combination and alcohol)data are not available.
The reason Xanax and other benzodiazepines are very popular is that they have almost completely replaced barbiturate use. Unlike benzodiazepines barbiturates are very dangerous and a lethal dose occurs at as little as 1 gram and 4 grams almost always result in death.est Answer: INERSIAS is completely wrong. Here are the FACTS, not my personal belief of a lethal dose. And just because a person falls asleep from taking Xanax is not the same as a dangerous or near-lethal dose.