What must be verified to purchase pseudophedrine?

To purchase pseudophedrine, it is required to verify that the individual is at least 18 years old and to obtain a valid photo identification. This regulation is in place due to the potential for pseudophedrine to be misused in the production of methamphetamine, prompting the need for controls over its sale.

By requiring a photo ID, pharmacies and retailers can confirm a person's age and identity, ensuring that the sale is made only to those who are legally permitted to purchase it. This measure helps to mitigate the risk of misuse while allowing lawful consumers to obtain their medication.

The other options, while they may involve some form of identification or paperwork, do not address the specific legal requirements for purchasing pseudophedrine, which focus on age verification and the necessity of photo identification.