The present disclosure provides a
solution composition comprising about 0.5% w / v to about 30% w / v of atomoxetine and about 0.1% w / v to about 20% w / v of
oxybutynin, a
penetration enhancer, at least 40% w / v of an aliphatic
solvent, and a film forming
excipient, wherein the composition forms a washable and / or a peelable film when sprayed on a
skin surface, and wherein the atomoxetine and
oxybutynin do not crystallize before dermal absorption when the composition is applied to the
skin surface. The disclosure also provides a method of treating
obstructive sleep apnea in a subject in need thereof, the method comprising topically administering to the subject the topical compositions as described herein.