The invention discloses an
adapalene external preparation and a preparation method thereof, and relates to the technical field of
adapalene preparation preparation. The
adapalene gel comprises the following raw materials in percentage by
mass: 4.5-7.5% of adapalene, 3.5-8% of a gel base material, 2-4.5% of
cellulose, 0.5-2% of a
penetration enhancer, 18-25% of a water-retaining agent, 2-5% of a surfactant, a pH value
regulator and the balance of water, the dosage of the pH value
regulator is based on the standard that the pH value of the adapalene external preparation is regulated to 7-7.5; the gel base material comprises
poloxamer or carbomer, and further comprises sa-hao
seed gum, and the use amount of the sa-hao
seed gum accounts for 25-35% of the total
mass of the gel base material. According to the adapalene external preparation provided by the invention, the
irritation of adapalene to the
skin is basically eliminated by utilizing the effects of the gel base material consisting of
poloxamer or carbomer and sa-hao
seed gum and the surfactant; the
adhesive has good cohesiveness and water-retaining property, can keep the affected part moist after being smeared, promotes
medicine absorption, and avoids being wiped off or automatically falling off; the stability is improved, and the
medicine slow
release time is indirectly prolonged.