The present invention provides for devices and methods for vending regulated products, particularly controlled substances, including those containing pseudoephedrine. The present invention allows for the identification of consumers through reliable log-in-procedures, allows the consumer to select items, validates whether the purchase request complies with regulations, to facilitate the delivery of the requested product to a consumer. Other embodiments include a vending machine that is placed into a retail environment in which software enforces validation of the purchasers' identities, limits the amount of pseudoephedrine for each purchaser within the regulations of local, state and federal agencies.This invention reduces the resources which must be expended in retail locations to comply with regulatory agencies, to implement effective counter measures against illegal purchases of regulated and controlled substances, and to ensure the effective limitation of these substances within reasonable limits required for normal consumption.