What will dexedrine (dextroamphetamine) do if i snort it?

A really stupid: thing to do. About the only reason for snorting dexedrine is abuse by an addict. You bypass the GI tract and risk a much more rapid onset of action without the gradual release the pill or capsule provides. Over time you will erode the nasal mucosa. You could get an accidental overdose and because it is not sterile you could get a CNS infection. Beyond that you will be sliding down a very slippery slope regarding the legality of your acquisition and use of dexedrine.

Snorting Dexedrine: 1. You can die from a drug overdose. 2. It destroys nasal tissue so that the amount absorbed decreases over time. 3. It give you sniffles because the body increases mucus production in response to the damage you are doing. This would be a very dangerous thing for you to do.