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MDA Dosage
by Erowid

MDA generally comes in either tablet form or as a whitish powder. It is somewhat frequently found in pills sold as MDMA. Likewise, material sold as MDA is somewhat frequently actually MDMA. Following are approximate dosages in mg. Some people are more sensitive to MDA than others. Be careful if you are using MDA for the first time or using material of an unknown purity and strength. There is some disagreement about whether MDA is more potent than MDMA (requiring lower doses), or if they are similarly potent. This is complicated by the fact that most people are not using lab verified materials. Erowid's current view is that the required dose of MDA vs MDMA are very similar, but result in slightly different effects (MDA is more physically stimulating while MDMA is more empathogenic at the same dose).
Oral MDA Dosages
Threshold30 mg
Light40 - 60 mg
Common (small or sensitive people)60 - 90 mg
Common (most people)75 - 125 mg
Common (large or less sensitive people)110 - 150 mg
Strong150 - 200 mg
Heavy200 + mg

Onset : 20 - 90 minutes (depending on form and stomach contents)
Duration : 3 - 6 hours
Normal After Effects : up to 24 hours

Every individual reacts differently to every chemical.
Know your Body - Know your Mind - Know your Substance - Know your Source.

Erowid's dosage information is a summary of data gathered from users, research, and other
resources and should not be construed as recommendations. Individuals can respond
differently to the same dosage. What is safe for one can be deadly for another.