A method of delivering a prescription drug discount via a cellular message on a cellular carrier network includes capturing a prescription token in a memory of a cellular device. The cellular device processes the prescription token to sending a message artifact as a cellular message, such as SMS message, over a carrier network to a discount service computer. The discount service computer receives and parses the message artifact, and reconstructs the prescription token. The discount service computer includes an eligibility database of prescription drug patients, cell numbers, and prescription drug identities. The prescription token is matched to a record, and otherwise a corresponding record is generated for the prescription token. The discount service computer accesses a discount database to retrieve a discount coupon relevant to the record of the eligibility database and the prescription drug identity. The discount coupon is sent by response text message to the cellular device.