Real-world experiences of folic acid supplementation (5 versus 30 mg/week) with methotrexate in rheumatoid arthritis patients: a comparison study

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K.T. Koh
C.L. Teh *
C.K. Cheah
G.R. Ling
M.C. Yong
H.C. Hong
S.C. Gun
(*) Corresponding Author:
C.L. Teh |


The objective of this study was to compare the tolerability of methotrexate in two different regimes of folic acid (FA) supplementation in rheumatoid arthritis (RA). We performed a multicenter, cross-sectional observational cohort study on 240 RA patients with 120 patients each in 5 mg of FA weekly and 30 mg of FA weekly supplementation. There were no significant differences for side effects (14.2 versus 22.5%, P=0.523) and discontinuation of methotrexate (3.6 versus 13.3%, P=0.085). RA patients given 5 mg of FA weekly supplementation had a lower disease activity score 28 compared to 30 mg of FA weekly supplementation [3.44 (1.10) versus 3.85 (1.40), P=0.014]. FA supplementation of 5 mg per week and 30 mg per week was associated with similar tolerability of methotrexate in RA patients.

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