Abstract: An example accessory for an inhaler includes: a housing to couple to the inhaler; an accelerometer disposed in the housing, the accelerometer to obtain (i) motion data representing motion of the inhaler and (ii) orientation data representing an orientation of the inhaler; a microphone disposed in the housing, the microphone to obtain audio data for determining an inhalation rate of a user of the inhaler; a force sensor disposed in the housing, the force sensor to obtain force data representing force applied to the accessory; a communications interface disposed in the housing; a memory disposed in the housing; and a processor disposed in the housing, the processor interconnected with the communications interface and the memory the processor to: detect actuation of the inhaler based on the force data applied to the accessory; and generate dosage administration data based on the motion data, the orientation data and the audio data.