FIELD : medicine; pharmaceuticals.SUBSTANCE : described is a pharmaceutical composition for use in treating atopic dermatitis. Pharmaceutical composition contains digomogamma-linolenic acid (DGLA) or alkyl ether DGLA, eicosatetraenoic acid, eicosatrienoic acid, oleic acid, linoleic acid and eicosandienoic acid encapsulated in a capsular shell. DGLA or DGLA alkyl ester is at least 95? by weight of the total amount of fatty acids in the pharmaceutical composition. Said pharmaceutical composition is delivered orally. Encapsulated shell is encapsulated from 200 mg to 1 g of DGLA or alkyl ether of DGLA. Pharmaceutical composition is administered in amount of 1 to 8 capsules a day. Capsule shell contains gelatine and glycerin. Atopic dermatitis is a severe atopic dermatitis.EFFECT : oral administration of the pharmaceutical composition according to the invention provides treating atopic dermatitis.11 cl, 23 dwg, 24 tbl, 4 ex