(a) A seller, retailer, or vendor may not sell a product containing dextromethorphan to another person unless
(1) the seller, retailer, or vendor checks a government-issued photo identification and determines the person is 18 years of age or older;
(2) from the person's outward appearance, the seller, retailer, or vendor would reasonably presume the person to be 25 years of age or older; or
(3) the person is under 18 years of age and has a prescription for the product issued by a licensed practitioner.
(b) A seller, retailer, or vendor or an employee of a seller, retailer, or vendor who knowingly or wilfully violates this section is guilty of a violation and is punishable by a fine of
(1) $150 for the first violation; and
(2) $250 for the second and each subsequent violation.