 Wisconsin Assembly Bill 681 states that a provider is prohibited from providing a dextromethorphan containing product to a person under the age of 18 and a person under the age of 18 is prohibited to purchase a dextromethorphan containing product.This part of the bill does not apply to a person under the age of 18 purchasing a dextromethorphan containing product pursuant to a prescription.A provider is required to obtain proof of age from a purchaser who, based on appearance, could be presumed to be under the age of 25.