U-49900
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2 sources
Collated from TripSit, Pharmacology. Where sources differ (e.g. dosing), Compare shows them side by side.
A substance that is an analogue of U-47700, yet doesn't share much with it. If you are interested in trying it, I recommend reading this. https://www.reddit.com/r/researchchemicals/comments/5gbo3e/u49900_experiment_and_warning/TS
Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.