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: how many boxes of sudafed can i buy
Under federal law in the United States, your purchase of Sudafed (pseudoephedrine) is restricted by weight rather than a set number of boxes. The establishes strict daily and 30-day limits for retail purchases. Federal Purchase Limits The DEA Diversion Control Division limits the amount
: 3.6 grams per day, regardless of the number of transactions. 30-Day Limit : 9.0 grams in any 30-day period. how many boxes of sudafed can i buy