Bobert you don't drink it, you paint with it, preferably with a brush. LOL It contains ethanol, don't stick your head in the can, it will flatten you. The same stuff is in Febreeze or hair spray and a lot of personal deodorants.

And yes, you do need to use it in a well ventilated area, but it still does a better job than Kilz. And if I have to do a job that requires preventing bleed through, its still my choice, because the length of time you're exposed to it is realatively minimal.

One should always read and heed the warnings on the label of anything they're considering using. But of course if you're also considering going as far as letting some college students loose with a spray gun in your basement, you're really into living dangerously.LOL

If you have concerns about any household product. check out this site to see what you are getting into and the health risks involved, prior to use.