Del. Code Ann. tit. 16, § 4740A
(a) Age limit on sale of dextromethorphan. — (1) No commercial entity shall knowingly or wilfully sell or trade a finished drug product containing any quantity of dextromethorphan to a person less than 18 years of age.
(b) Limitations. — (1) Nothing in this section shall be construed to impose any compliance requirement on a retail entity other than manually obtaining and verifying proof of age as a condition of sale, including placement of products in a specific place within a store, restrictions on a consumer’s direct access to finished drug products, and maintenance of transaction records.
(c) Penalties. — Any manufacturer, distributor, retailer, or wholesaler that sells or trades dextromethorphan in violation of this section shall receive a warning letter from the Office of Controlled Substances for the first violation and thereafter be subject to a civil penalty issued by the Office of Controlled Substances in the amount of: