> It looks like they're using up to 1/2 a gram for treatment.

Typically they use 0.5mg/kg. I think you may be confusing milligrams (mg) with grams (g).

I was told when I had it done that almost all of the cost was the paid time for a trained professional to do the IV, since ketamine for medical purposes costs on the order of cents per gram or less.

Do you have a source on that 1/2 gram number? My reading has lead me to believe that a typical therapeutic dose for these treatments is between 60-75mg. I could be way off, though.

It's .5mg/kg, so even 50 mg is enough for a pretty big guy. 500mg would knock you out for awhile. He might be misplacing a decimal there.

I was looking at studies earlier today, and the upper limit (assuming a 100 kg person) was 0.5 g from one of the studies.

That can't be right, 0.5g will knock out a horse for many hours

I think that the new part of this publication that they now have an easy to administer nose spray.

My doctor uses a sedative also to make sure you don't freak out during the treatment. I think most doctors do this. You need to factor that into the cost too.

Sedatives (probably benzodiazepines) are also very inexpensive (on the order of less than a dollar) compared to the $375 figure.