For the sake of keeping this thread alive, I'll post some more insights regarding 2-FMA that might be of worth to some. This thread is virtually the only solid body of anecdotal information about 2-FMA anywhere on the web (not a single report on Erowid, nothing accurate or useful on other forums and not much on BL besides this), so let's try to keep the ball rolling.
The initial reduction in effects from dosing on consecutive days occurs after about 2-3 days of repeated use, as is the case with most any drug ever. After this, however, this "new" level of effects can be recreated on consecutive days (or weeks even) from the same amount of 2-FMA for pretty much as long as you care to continue dosing. I've been using 20mg oral in the morning on an empty stomach before my hour-long daily commute to work, and the effects are consistent every day.
Any redosing, however, consistently produces greatly diminished effects during periods of prolonged use. What I mean is that, as I stated above, I get the same effects from my daily 20mg morning dose every single day. A second (or third or fourth) dose of the same or greater amount as the initial dose, however, produces significantly diminished effects. It's as if the brain recharges enough overnight to allow the first dose of a day to work properly, but there's not enough recovery time within a single day for subsequent doses to be as effective.
Also, during periods of prolonged daily use I've found the effects I experienced on the first couple days of using 2-FMA with zero tolerance CANNOT be recreated no matter how high you push the dose. For example, if I haven't used 2-FMA in a month or more and take 20mg oral it produces focus, mood-lift and other dopaminergic effects similar to d-amphetamine but much, much smoother. The same dose taken the next day will have more or less the same effects, and on the third day these effects can be recreated with a slightly higher dose (30-40mg). After the 2nd or 3rd day however, oral doses as high as 60 or 80 mg will not reproduce the same elevated mood or productive focus and instead result in over-stimulation and insomnia.
If you plan on using 2-FMA for extended periods of time, you have to accept that it will not feel as good as it did the first day or two of dosing and not try to chase that initial high or you'll end up overstimulated and not be satisfied. That being said, 2-FMA has been fantastic for me over the last month or so, with my use being daily on weekdays and taking a break from it on weekends. Far more functional and sustainable than daily d-amphetamine use IMO, you just have to find the lowest dose that provides desired effects and is still functional and not try to push the limits.
Also, all of this only applies to oral dosing. Nasal doses seem to be qualitatively different than oral doses and I suspect that, as some others on this thread have speculated, that something in the metabolization process causes oral and nasal doses to essentially be different drugs in terms of effects and side-effects. I don't find nasal dosing to be sustainable over multiple days due to excessive side-effects and "sketched-out" feelings and greater feelings of neurotransmitter depletion.
