| > I believe that one of the most "abused" drugs for "productivity" is currently Modafinil, far more powerful than Adderall and without all those side effects. Modafinil is easier to acquire than Adderall, but it certainly isn't "far more powerful" than Adderall. Just the opposite, in fact, which is also why Adderall is a more tightly controlled substance than Modafinil. Modafinil is a poorly-understood medication, but we do know that it has a moderate affinity for the dopamine reuptake transporter, which is a mode of action that overlaps slightly with other stimulants such as Methylphenidate. The remaining, additional modes of Modafinil's action are still a matter of active research. Adderall, meanwhile, not only inhibits dopamine reuptake like Methylphenidate and Modafinil, but also enters the presynaptic terminals to exert effects within the cell. Through a series of actions, it forces more dopamine into synapses than would normally be released. This essentially makes it more powerful, and thus more prone to abuse, than Modafinil. Those same intra-neuron actions also make Adderall potentially more neurotoxic than Modafinil. By upsetting the natural dopamine balance within a cell, Adderall can theoretically overwhelm certain systems that keep the cells working properly. Dopamine metabolism can unfortunately produce toxic metabolites, which are difficult for cells to cope with when produced in excess. Adderall can indirectly produce enough of these toxic metabolites to cause cell death. There is much debate over the exact dosage level at which this damage happens, but there is already one controversial study showing damage in non-human primates at typical therapeutic doses. Modafinil is not the safest medication either, given the number of potential sensitivity reactions that some people have. Taking Modafinil without a doctors supervision, as many here seem to do, is thus not a good idea. Fortunately Modafinil seems to be more self-limiting due to the unpleasant side effects many experience at higher doses, such as decreased verbal fluency. Long-term, the largest problem with Modafinil might just be its long half-life. Although the marketing material would lead you to believe it doesn't affect sleep, it's virtually impossible for a wake-promoting agent with an incredible 15-hour half-life would not negatively impact sleep. The 15-hour half-life means that by the time you're ready for bed, your body has only eliminated roughly half of your Modafinil does from the morning. Long-term sleep impairment is not conducive to long-term health. Beyond all of this, there is a conversation about how the "productivity" aspect of these stimulants is largely limited to acute dosing, and is heavily prone to tolerance and withdrawal effects, but I've gone on long enough already. |