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What's the story behind "rainbow" fentanyl?

Name: What's the story behind "rainbow" fentanyl?
Uploaded: 2022-10-07T09:41:00-0500
Duration: 3 min 38 s
Description: Fentanyl creates a feeling of happiness and increase dopamine in brain, but it's also 100 times more potent than morphine.

Fentanyl creates a feeling of happiness and increase dopamine in brain, but it's also 100 times more potent than morphine.