The exact mechanism of action for amphetamine is not entirely known. Amphetamine works by increasing the levels of dopamine, epinephrine, and norepinephrine in the brain. This causes an increase in...
Yes, if you are insane, completely out of your mind and believe that injecting a prescribed pill into your bloodsteam is a good idea. Note that I called this insane.
Snorting Amphetamines will allow the drug to kick in faster, but often the peak does not last as long. Ingesting amphetamines usually gives a more powerful high.