Innovation and adaptation: The rise of a fentanyl smoking culture in San Francisco

Plos One

This is a qualitative study describing the growing practice in the San Francisco area of smoking rather than injecting fentanyl. Fentanyl salts are stable up to 350°C making heating and inhalation more effective than for heroin. Some of the increase in smoking is driven by users’ difficulty finding accessible veins. There is also the perception that smoking presents less of a risk of overdose compared to injection. It is unclear if smoking is safer and overdose deaths continue to rise in San Francisco. Over time a brown residue accumulates that contains a high concentration of drug. The smoking equipment is often used for both methamphetamine and fentanyl so this residue contains an unknown mixture of the history of the drugs consumed. The residue is valued for potency but presents a new overdose risk due to the unknown amounts of drugs it contains.

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