Butantrone is the 10-butyryl derivative of dithranol with antipsoriatic activity. When butantrone and dithranol were used in equimolar gradually increasing concentrations in short-contact therapy for psoriasis the efficacy of butantrone was somewhat lower compared to dithranol. Butantrone has an antipsoriatic activity almost equal to that of dithranol. When short contact treatment is used, erythema and staining with butantrone are weaker than with dithranol.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.