A metered-dose transdermal spray (MDTS) delivers a

drug A drug is any chemical substance other than a nutrient or an essential dietary ingredient, which, when administered to a living organism, produces a biological effect. Consumption of drugs can be via insufflation (medicine), inhalation, drug i ...

to the surface of the skin and is absorbed into the circulation on a sustained basis. It works in a similar manner to a

transdermal patch A transdermal patch is a medicated adhesive patch that is placed on the skin to deliver a specific Dose (biochemistry), dose of medication through the skin and into the bloodstream. An advantage of a transdermal drug delivery route over ot ...

or topical gel. The drug is delivered by a device placed gently against the skin and triggered, causing it to release a light spray containing a proprietary formulation of the drug that quickly dries on the skin to form an invisible drug depot. As it would be from a patch, the drug is then absorbed steadily for a predetermined amount of time.

References

Drug delivery devices Dosage forms {{treatment-stub