Final answer:
Sudafed can be sold to a patient without a prescription, but there are limits on the amount that can be purchased without an Rx.
Step-by-step explanation:
Sudafed is an over-the-counter (OTC) medication used to relieve nasal congestion. According to FDA regulations, Sudafed can be sold to a patient without a prescription. However, there are restrictions on how much Sudafed can be sold without an Rx. In the United States, Sudafed contains pseudoephedrine, which is a regulated substance due to its potential for misuse in the production of methamphetamine. The Combat Methamphetamine Epidemic Act limits the OTC sale of Sudafed to 3.6 grams per day and 9 grams per month per customer. Therefore, a pharmacist or retailer can sell Sudafed to a patient without an Rx as long as it does not exceed these limits.