If you have been denied a purchase of at the pharmacy, it is likely because you have reached a federal or state-mandated legal limit. Because pseudoephedrine can be used to manufacture illegal substances, its sale is strictly monitored. When Can You Buy Sudafed Again?
You are restricted to 3.6 grams of pseudoephedrine base per day. when can i buy sudafed again
This is not based on a calendar month (e.g., January 1st–31st). Instead, the system looks back at the previous 30 days from today. If those total purchases exceed 9 grams, you must wait until enough time has passed for an older purchase to "fall off" the 30-day window. How Much is 9 Grams? If you have been denied a purchase of
Legal Requirements for the Sale and Purchase of Drug ... - FDA You are restricted to 3
In most cases, you can buy Sudafed again .
To put these limits in perspective, 9 grams is roughly equivalent to of standard Sudafed. If you are using a 12-hour or 24-hour formulation, you may reach this limit faster than you expect.
Understanding Sudafed Purchase Limits: When and How You Can Buy Again