What factor must be considered when calculating the maximum amount of pseudoephedrine for sale?

The correct factor to consider when calculating the maximum amount of pseudoephedrine for sale is the amount of the base. In the context of medication regulation, particularly with pseudoephedrine, it is crucial to focus on the actual quantity of the base ingredient—not the salt form or the number of packages.

When assessing the legality of pseudoephedrine sales, the federal and state laws set limits based on the total weight of the active ingredient (the base) that is present in the product. This approach stems from the concern over using pseudoephedrine in the illicit production of methamphetamine, which has led to stringent regulations governing its sale.

Focusing exclusively on the amount of salt, the number of packages, or the type of product would not accurately reflect compliance with these regulations, as they may not adequately represent the true amount of the active compound that is restricted under the law. Therefore, knowing the specific amount of pseudoephedrine in its base form is essential for ensuring that sales remain within legal limits.