Usability of an application device for nabiximols oromucosal spray in patients with upper limb impaired multiple sclerosis.
Many patients with multiple sclerosis lose some function in their upper limbs (arms) and hands because of spasticity, which can make it difficult to take their medication at the required times each day. Patients taking nabiximols oromucosal spray may not have the strength or coordination needed to press the spray nozzle into their mouth. To support delivery of the medicine in these patients, a specific application device has been developed that reduces the strength necessary to administer the spray. 60 patients with upper limbhand impairment tested the device and completed an 18-item questionnaire. Patients rated the instructions for use, ease of use and ergonomic features of the device as optimal, with average scores of ≥8.910 across questions.