Extended release. Those fucking things would keep me up for 3 days. If I take a the same dose of instant release, it'll be worn off at the end of the day and I'

Extended release. Those fucking things would keep me up for 3 days. If I take a the same dose of instant release, it'll be worn off at the end of the day and I'll sleep like a log. They say it wears off in 4 hours, but a single dose keeps working all day for me. Depends on how you metabolize it.