Table 2.

Detailed composition of the transdermal microemulsions developed by the works included in this review. Excipient and drug quantities and units are shown as reported in the respective articles (w/w% for excipients, and mg/mL for drugs). For the excipients, usually the brand name was used (when available).

Composition		Transdermal Brexanolone Microemulsions [37]
		o/w	w/o
Oil	Oleic acid	7.00% w/w	10.00% w/w
Hydrophobic surfactant	Plurol® Oleique CC 497 1	7.14% w/w	11.43% w/w
Hydrophilic surfactant	Labrasol® 2	42.86% w/w	68.57% w/w
Cosolvent	Transcutol® P 3	17.20% w/w	4.00% w/w
Water	-	25.80% w/w	6.00% w/w
Drug	Brexanolone	10 mg/mL	19 mg/mL

¹ polyglyceryl-3 dioleate; ² polyethylene glycol-8 caprylic/capric glycerides; ³ diethylene glycol monoethyl ether.