Hello.
Last night I slept only for 2 hours so I took 200mg of Modafinil (Modvigil generic brand) at 6am when I woke up and 200mg more later at 1pm but I felt very tired at 3pm. I don't understand why it didn't work because it's supposed to be effective against sleep deprivation and it was used by the army. Should I try a lower dosage like 100mg in the morning and 100mg in the afternoon ? Or should I try 400mg in a single take ?