Dozens of top posts under the #opioidcrisis and #opioidaddiction hashtags contained comments touting Oxycontin, Percocet, Codeine, and other prescription opioids — along with phone numbers and usernames for encrypted messaging accounts. A typical entry, under a video describing tens of thousands of deaths by drug overdose, offered "fast deals" on "Oxys, Roxy, Xans, Addy, codeine, perc...Available 24.7 for delivery."