View Full Version : Just starting Dex ER -- How long does this last for you?

10-15-15, 05:47 AM
Helloooo theeeere. I am switching from Adderall to Dexedrine, and am very happy with the switch. Adderall 10mg XR would last me exactly 7 hours and 20 minutes. I think my right dosage is about 7.5mg Dex ER. How long does Dex last for you? How does its length compare to a similar dosage on Adderall? The one post I read seemed to indicate it was shorter lasting than Adderall.

Errrr there is probably already a thread in existence dedicated to this... Feel free to forward me there. (I'll keep looking.)

10-15-15, 11:49 PM
For me I think it lasts around 6 hours (5mg Dex ER). I don't think 7.5 mg Dex ER exists. There's 5 mg, 10 mg and 15 mg Dex ER caps.

10-16-15, 12:05 AM
I take 30mg at 8:00am.
I then take another 30mg at 12:00pm.
It’s over for me by about 9:00pm.


10-16-15, 03:08 AM
I take 30mg dexedrine methocel 40% gel caps. It delivers 15mg in the first 3 hours and 90% in 8 hrs. I also have IR that I can dose up with.

So to answer, for my medication roughly 10hrs.

10-20-15, 09:49 AM
I assume you mean the spanules? I have absorption issues so I may be on the shorter end of things but my spansules last me about 5 hours and the ir I take with it lasts about 3-4. I take spansule/ir combo and it works really well.