: 3.6 grams per day, regardless of the number of transactions. 30-Day Limit : 9.0 grams in any 30-day period.
The DEA Diversion Control Division limits the amount of pseudoephedrine base you can buy as follows:
The number of boxes you can buy depends on the strength and quantity of the tablets. For example, the 9-gram 30-day limit roughly equates to: