Thanks so much for the additional info, m4estr0! This is a perfect example of my reasoning for putting so much warning information at the bottom. These examples are people using multiple boxes a day for months. I saw on there a quote of 50 bulbs a day for 6 months before seeking medical attention. Erowid Nitrous Oxide Vaults : Health : Nitrous and B-Vitamin Dangers (Laughing Gas, Nitrous, NO2)

I would say the word "excessive" is an understatement at that point.

But erowid does mention that people with predispositions to b12 def shouldn't mess with it.

For SWIM, a box of 20 bulbs will last weeks.

He finds 1 to 1&1/2 bulbs per dose, and 3-5 doses per LSD experience should be more than enough to enjoy without going anywhere near overboard. This combination has worked for years without any noticeable unwanted effects and has lead to many insights that have lead to the improvement of his life and the lives of people around him.

SWIM will, at the highest frequency, experience LSD in a ritualistic context 4x a month. Very often much less or not at all, and he does not enjoy the effects of N2O without combination, so he remains unaffected by any addiction potential it carries. SWIM has friends who use MANY more bulbs per trip with no ill-effects so far.