Drug Equivalence Chart

Half-lives apply for oral route

Stimulants

Drug	Dose	Half-Life (hours)
levoMethylphenidate	50 mg	1.7
DexMethylphenidate	5 mg	4.6
Lisdexamfetamine	8.3 mg	0.47
Dextroamphetamine	2.5 mg	11.1
Methylamphetamine	0.5 mg	10.7
Caffeine	75 mg	6.22
LevoAmphetamine	7.5 mg	3.96
Modafinil	50 mg	15

Sedatives

Drug	Dose	Half-life (hours)
L-Theanine	200 mg	1.2
Alprazolam	1 mg	10.9
Diazepam	10 mg	23
Lorazepam	2 mg	11.6

Narcotics

Drug	Dose	Half-life (hours)
Fentanyl	0.1 mg	1.98
Heroin	5 mg	0.05
Morphine	10 mg	2.86

Antidepressants ^[1]

Drug	Dose
Sertraline	100 mg
Escitalopram	18 mg
Fluoxetine	40 mg
Paroxetine	34 mg
Agomelatine	116 mg
Amitriptyline	122 mg
Bupropion	348.5
Clomipramine	116 mg
Desipramine	196 mg
Dothiepin	154.8 mg
Doxepin	140 mg
Fluvoxamine	143 mg
Imipramine	137 mg
Lofepramine	250 mg
Maprotile	118 mg
Mianserin	101 mg
Mirtazapine	50.9 mg
Moclobemide	575 mg
Nefazodone	535 mg
Nortriptyline	100.9 mg
Reboxetine	11.5 mg
Trazodone	401 mg
Venlafaxine	150 mg