The abuse of bupropion by pulverizing and snorting the medication has been described at least as far back as 2002. Bupropion inhibits re-uptake of dopamine and norepinephrine, but apparently has little or no effect on serotonin. It is abused for its psychotropic effects that resemble those of amphetamine and cocaine..
A hallmark of overdose with sustained-release or extended-release bupropion formulations is delayed onset of seizures — sometimes more than 8 hours after ingestion. When these preparations are crushed and insufflated, absorption is rapid and manifestations would be expected to come on more quickly.