The main purposes of the well-known nootropic Modalert 200mg are to increase focus and encourage wakefulness.  Although it doesn't immediately lessen stress at work, it can assist control its effects by enhancing motivation, mental clarity, and alertness.  Modalert may promote improved performance and time management for people experiencing exhaustion or burnout, hence reducing stress levels. 

Modalert should only be used under a doctor's supervision, though, as some users may have negative side effects like anxiety or insomnia.  Any drug used to increase productivity at work should be supplemented by lifestyle modifications like getting enough sleep and practicing stress management.