The dangers of Xanax misuseBuying Xanax from illicit sourcesWhen someone buys Xanax from an online marketplace or a street dealer, the drug is unlikely to be pharmaceutical grade. These counterfeits can contain potentially dangerous substances and higher, more lethal strengths of alprazolam, which can lead to an overdose or even death.This unpredictability can make counterfeit Xanax very dangerous to take, as a person is completely unaware of the strength or potential effects of taking the drug.Taking pharmaceutical grade Xanax without a prescription