Dexmethylphenidate
II
Gabapentin
V
Suvorexant
IV
Zaleplon
IV
Zolpidem
IV
Meprobamate
IV
Butorphanol
IV
Tapentadol
II
Modafinil/Armodafinil
IV
Tramadol
IV
Nabilone
II
Phenobarb
IV
Dronabinol
III
Clonazolam
I
Phentermine
IV
Lacosamide
V
Codeine
V if NMT 2 mg/mL
III if 18 mg/ml OR 90 mg per dosage unit
Brivateracetam
V
Brivateracetam
V
Phenobarb
IV
Pregabalin
V