In the United States, daily and monthly sales of pseudoephedrine as of 2015, are restricted to 3.6 and 9 grams of the base product, respectively, notes the Texas State Board of Pharmacy. This federal legislation is part of the Combat Methamphetamine Epidemic Act of 2005, which was implemented in 2006.
The act prohibits pharmacists from selling pseudoephedrine over the counter. Instead, those who want to purchase products containing this active ingredient can only buy a limited amount of pseudoephedrine on any calendar day or within a 30-day period and buyers are required to supply photo identification, explains the United States Food and Drug Administration.
In 2011, the Senate Enrolled Act 503 amended part of the purchase restrictions on pseudoephedrine in Indiana. The daily sales limit remained at 3.6 grams but the monthly sales limit was changed to 7.2 grams, states the Indiana Professional Licensing Agency.