Substances added to Schedule I and Schedule IV of the U.S. Controlled Substances Act

The following substances have been added to Schedule I of the U.S. Controlled Substances Act:

1. Alpha'-Methyl butyryl fentanyl

2. 2',5'-Dimethoxyfentanyl

3. 3-Furanyl fentanyl

4. Isovaleryl fentanyl

5. Meta-Fluorofentanyl

6. Meta-Fluoroisobutyryl fentanyl

7. Ortho-Fluorofuranyl fentanyl

8. Para-Methoxyfuranyl fentanyl

9. Para-Methylcyclopropyl fentanyl

10. ADB–BUTINACA

11. alpha-PiHP

12. 3-methylmethcathinone

13. MDMB-4en-PINACA

14. Methyl 2-[[1-(4-fluorobutyl)indole-3-carbonyl]amino]-3,3-dimethyl-butanoate

15. ADB-4en-PINACA

16. 5-Pentyl-2-(2-phenylpropan-2-yl)pyrido[4,3-b]indol-1-one

17. Ethyl 2-[[1-(5-fluoropentyl)indole-3-carbonyl]amino]-3,3-dimethyl-butanoate

18. Methyl 2-(1-(4-fluorobenzyl)-1H-indole-3-carboxamido)-3-methyl butanoate

The following substance has been added to Schedule IV:

1. Zuranolone