Ephedrine and hydriotic acid are two primary components of methamphetamine prepared in clandestine "kitchens" across the nation. The recent decision by the FDA to eliminate ephedrine products in the US will likely force the already secret meth labs further underground. Methamphetamine is speed; A stimulant that promotes excitation and stimulation almost unilaterally throughout the body.
Crack is to cocaine what Crystal meth is to methamphetamines; A frighteningly more powerful and concentrated version of the principal psychoactive compound. Crystal drug users are typically referred to as "tweekers." A tweaker is a methamphetamine addict who has not slept in days. Paranoia is common and alcohol or other depressants promote the users negative feelings and perception of danger.
One use of crystal meth can result in an entire month of symptoms and side effects related to the drugs presence and withdrawal. Unlike other narcotics whose tolerance can be overcome with additional dosing, no amount of meth will return the user to the initial euphoria of the first dose. This irreconcilable craving produces a frustration and drive that makes meth users typically predatory and extremely dangerous.