Yep, lots of defence forces use the agent. Much better than dextroamphetamines. Increased alpha wave much better than just “staying awake” . US AirForce long flights. SpecOps, and even the Indian military use.
Not to say this is preferable to a normal 7 hour sleep night— which no one gets in the current stress pressures being applied to the working masses.
The advantage of modalert (generic name: modafinil) is it does little to your heart rate, small motor skills, blood pressure. Also, no euphoria. In short, it is like amphetamines, but without the amphetamine problems.
It is called “provigil” in the USA and is like $800 for 30 pills.
Fortunately, there is a related drug, called “adrafinil” that your liver breaks it down into modafinil and works exactly the same. (Because it is processed by your liver, you should not drink with it, nor should you use it for more than a couple months at a time.)
For whatever reason, adrafinil, is not a prescription drug in the USA and completely unregulated.
In fact, you can buy it on Amazon:
Both adraphinil and modafinil very well on ADHD, by the way.