Betamethasone dipropionate is a glucocorticoid steroid with anti-inflammatory and immunosuppressive abilities. It is applied as a topical cream, ointment, lotion or gel (Diprolene) to treat itching and other minor skin conditions such as eczema.Brand names include Alphatrex, Beta-Val, Diprolene, Diprolene AF, Diprosone, and Luxiq. Minor side effects include dry skin and mild, temporary stinging when applied.Betamethasone Dipropionate is a super high potency corticosteroid used to treat inflammatory skin conditions such as dermatitis, eczema and psoriasis.rand names include Alphatrex, Beta-Val, Diprolene, Diprolene AF, Diprosone, and Luxiq. Minor side effects include dry skin and mild, temporary stinging when applied. Betamethasone Dipropionate is a super high potency corticosteroid used to treat inflammatory skin conditions such as dermatitis, eczema and psoriasis.