4-Methylaminorex is a white crystaline (or powdered) substance which is most commonly insufflated (snorted) or taken orally but can also be smoked in either the freebase or hydrochloride salt forms.

Oral 4-Methylaminorex Dosages Light 5 - 10 mg Common 10 - 25 mg Strong 25 + mg

Onset : 1 - 2 hours (depending on form and stomach contents) Duration : 10 - 16 hours Normal After Effects : up to 48 hours

(There appears to be some discrepency in reported duration, with some people reporting only 4 - 6 hours)

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Insufflated 4-Methylaminorex Dosages Light 5 - 10 mg Common 10 - 20 mg Strong 20 + mg

Onset : 20 - 40 minutes Duration : 5 - 10 hours Normal After Effects : up to 48 hours

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Smoked 4-Methylaminorex Dosages Light 5 - 10 mg Common 10 - 20 mg Strong 20 + mg

Onset : 1 - 3 minutes Peak Duration : 1 hour Duration : 6 - 12 hours Normal After Effects : up to 48 hours