Final answer:
Individuals can purchase up to 4 of the 30mg pseudoephedrine tablets per day based on federal U.S. regulations to prevent misuse for the illicit production of methamphetamine. State-specific laws may impose further limits or prescription requirements.
Step-by-step explanation:
The question 'How many 30mg pseudoephedrine tablets can one person buy per day?' involves understanding the regulations around the purchase of medications containing pseudoephedrine. In the United States, the Combat Methamphetamine Epidemic Act of 2005 set a daily limit on pseudoephedrine purchases. A person can buy up to 3.6 grams of pseudoephedrine in a single day, which is equivalent to 120 milligrams (mg) 30mg pseudoephedrine tablets. Therefore, an individual could purchase a maximum of 4 of the 30mg tablets per day without breaching the federal limit.This restriction is in place to prevent the illicit production of methamphetamine, as pseudoephedrine is a precursor chemical in its synthesis. It's important to note that additional state-specific limitations may also apply, and some states may require a prescription for pseudoephedrine purchases.