Following are approximate dosages in mg. Be careful if you are using MDA for the first time or using material of an unknown purity and strength. Every individual reacts differently to every chemical. 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.