so far i took it for about two months. Yes it's an anti-depressa...

the insomnia and exact symptoms are happening to me and I have been on it for a little over a year. you descibed it so perfectly, its not that i cant lay down and sleep, its that my mind seems to be fighting doing that. Not rushing thoughts just a mental state that seems to fight trying to sleep. also the nightmares and unusually crazy dreams every night and it always seems like Im partially asleep alot of the night. Its actually getting worse and affecting my daily function. NOT GOOD . plus we were just changed to a HSA (health savings account ) and now have to pay full price for it .

I found Wellbutrin XL to be the most potent of the three,(Wellbutrin, SR, XL).
I experienced your exact effects, surge of energy and insommnia.
This indicates your dose is too high for what you require.
I began taking the XL every other day or 3rd day which helped a little.
You do not need to take XL every day once you have been on it for awile because the effects are cumulative.
Had better results switching to the SR.
SR is not as strong / potent as XL.
Is easier to control, 150mg one at morning, one at afternoon.
Costs less, generic SR is available, Wallmart Pharmacy has the best price.
About the quitting smoking . . . . .
research Zyban, is the same chemical as Wellbutrin.
Prescribing XL for quitting smoking is overkill.
You do not need meds THAT strong.
I take SR seasonally, while on SR I have no desire to smoke.
It does work.