Final answer:
The maximum amount of pseudoephedrine an individual can purchase in one 30-day period is up to 9 grams. Pseudoephedrine is a decongestant used to relieve nasal congestion. These purchase limits are regulated by the Combat Methamphetamine Epidemic Act (CMEA).
Step-by-step explanation:
The maximum amount of pseudoephedrine that an individual may purchase in one 30-day period is regulated by the U.S. federal law called the Combat Methamphetamine Epidemic Act (CMEA). According to the CMEA, an individual can purchase up to 3.6 grams of pseudoephedrine in a single day and up to 9 grams in a 30-day period.
Pseudoephedrine is a decongestant commonly used to relieve nasal congestion due to allergies or the common cold. It is also a precursor chemical used in the illicit production of methamphetamine.
It's important to note that these limits can vary from country to country and may also be subject to state or local regulations.