<P> 25I - NBOMe sold in blotters is often assumed to be LSD </P> <Li> <P> Bromazepam, a benzodiazepine drug </P> </Li> <P> Bromazepam, a benzodiazepine drug </P> <Li> <P> Whippets containing nitrous oxide, commonly known as "laughing gas" </P> </Li>

Greg is using the most frequently used psychoactive drug in the united states which is