A nasal delivery device comprising: a device body including a trigger end and an outlet end; a trigger assembly coupled to the trigger end of the device body, the trigger assembly including prongs extending axially from the trigger assembly toward the outlet end, and a safety rod extending axially from the trigger assembly toward the outlet end; an output assembly including a drug container supported by the device body and configured to hold a medication, a first seal and an outlet seal; and an activator assembly operably coupled to the trigger assembly and including: a push rod which extends towards the drug container, a plurality of latches extending axially away from the outlet end from the activator assembly, and an elastic activator device configured to bias the push rod to open the first seal and to drive movement of the drug container towards the outlet end to open the outlet seal and to expel the medication from the outlet end, wherein the device body further includes at least one activator catch, extending towards the trigger end at an angle and configured to support the plurality of latches of the activator assembly in the latched configuration; and wherein, in response to the movement of the trigger assembly relative to the device body, the prongs engage the plurality of latches of the activator assembly to release the plurality of latches of the activator assembly from the at least one activator catch of the device body and transition the activator assembly from a latched configuration to an unlatched configuration to permit the elastic activator device to drive the activator assembly axially towards the first seal, wherein the first seal is defined by a radial friction fit between a portion of the drug container and the device body or a drug container housing, wherein the safety rod has a first portion with a first cross-sectional area and a second portion with a second cross-sectional area that is smaller than the first cross-sectional area, wherein the first portion is disposed radially between the plurality of latches to inhibit radial movement of the latches when the activator assembly is in the latched configuration. a device body including a trigger end and an outlet end; a trigger assembly coupled to the trigger end of the device body, the trigger assembly including prongs extending axially from the trigger assembly toward the outlet end, and a safety rod extending axially from the trigger assembly toward the outlet end; an output assembly including a drug container supported by the device body and configured to hold a medication, a first seal and an outlet seal; and an activator assembly operably coupled to the trigger assembly and including: a push rod which extends towards the drug container, a plurality of latches extending axially away from the outlet end from the activator assembly, and an elastic activator device configured to bias the push rod to open the first seal and to drive movement of the drug container towards the outlet end to open the outlet seal and to expel the medication from the outlet end, a push rod which extends towards the drug container, a plurality of latches extending axially away from the outlet end from the activator assembly, and an elastic activator device configured to bias the push rod to open the first seal and to drive movement of the drug container towards the outlet end to open the outlet seal and to expel the medication from the outlet end, wherein the device body further includes at least one activator catch, extending towards the trigger end at an angle and configured to support the plurality of latches of the activator assembly in the latched configuration; and wherein, in response to the movement of the trigger assembly relative to the device body, the prongs engage the plurality of latches of the activator assembly to release the plurality of latches of the activator assembly from the at least one activator catch of the device body and transition the activator assembly from a latched configuration to an unlatched configuration to permit the elastic activator device to drive the activator assembly axially towards the first seal, wherein the first seal is defined by a radial friction fit between a portion of the drug container and the device body or a drug container housing, wherein the safety rod has a first portion with a first cross-sectional area and a second portion with a second cross-sectional area that is smaller than the first cross-sectional area, wherein the first portion is disposed radially between the plurality of latches to inhibit radial movement of the latches when the activator assembly is in the latched configuration.