The duration of effect is related to the mechanism of delivery not strain-type.
Inhaling cannabis results in active metabolites in your system for about 2-4 hours.
Delivery under the tongue (sublingual) results in effects that last about 4-6 hours.
Use of edibles can result in effects that last up to 8 hours.
Some consumers report relief that exceeds the expectations of the delivery system, but this is individual.
If you are looking for longer duration of relief you may want to consider choosing a delivery route that meets with your daily needs for work/life functionality and intensity or duration of symptoms.
Gorilla Glue has definitely been known to be a major stress reliever. The deep, mellowing effects of this flower can be felt for hours after initial medication. The high THC percentage of this strain provides excellent psycho-active and euphoric effects.