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.
Never exceed 1/4th of a milligram of Xanax per 10 pounds. If your dog weighs 40 pounds, the maximum dose is ( 40 lbs. multiplied by 0.25 ) which is 1mg. Be sure to run any Xanax amount by your vet first! Negative Side Effects. Xanax is a Schedule IV drug and it needs to be taken very seriously.