Methotrexate–betamethasone weekly oral pulse in psoriasis

Abstract

Objectives: Methotrexate in psoriasis helps to clear the lesions fast but remission is short. To produce long‐term remission, methotrexate has been combined with betamethasone. Methods: A total of 40 patients with psoriasis (plaque type: 36, erythrodermic: four) were included in an open randomized study. Twenty‐eight patients received weekly 15 mg methotrexate and 3 mg betamethasone orally and 12 patients received weekly 15 mg methotrexate orally alone until the Psoriasis Area Severity Index (PASI) scores were reduced to 95–100% of the baseline scores. Follow‐up was carried out until relapse of the lesions. Results: Methotrexate combined with betamethasone orally weekly cleared the lesions in 27.13±2.39 (24.74–29.52) days with a remission period of 91.78±14.19 (77.59–105.97) days, whereas methotrexate alone took 33.09±5.61 (27.48–38.70) days to clear the lesions with a remission period of 20.30±2.50 (17.80–22.80) days. Conclusions: Methotrexate combined with betamethasone cleared the lesions faster and with a longer remission period compared with methotrexate alone.