How many hours does Modvigil 200 last?
A generic form of modafinil called Modvigil 200 usually lasts 10 to 12 hours.  Age, body weight, metabolism, and general health can all affect how it affects a person.  After consuming it, most users start to experience an increase in alertness 30 to 60 minutes later.  After taking the dose, peak concentration happens two to four hours later.