Embodiments relate to a system comprising a drug dispenser; a user interface to receive a user information; a bio-feedback monitoring device to monitor at least one vital of a user as an input to the bio-feedback monitoring device; a communication module; a processor; a database; a memory; wherein the processor is communicatively coupled with the memory; and wherein the processor is configured to: receive a prescription; dispense a drug through the drug dispenser on authenticating the user information with at least one vital of the user and the prescription; update an inventory of the drug through the communication module; log record of dispensing of the drug; maintain a ledger of the record of dispensing of the drug, use blockchain technology. The output of the bio-feedback monitoring device controls a quantity of drug dispensed from the drug dispenser.