Treating with folic acid alone can mask B12 deficiency and potentially worsen neurological outcomes
Inform your doctor if these effects bother you or do not go away
A brief maintenance period of 1-2 weeks at reduced dosing helps ensure healing has consolidated before stopping entirely
Vitamin B12, B6, or folate and cognitive function in community-dwelling older adults: a systematic review and meta-analysis
Pardo Lledias J, Martin Millan M, Mazariegos Cano JA, Aimar Marco C, Arias Martinez N, San Pedro Careaga B, Urizar Ursua E, Insua Garcia MC, Lavin Gomez BA, Hernandez Hernandez JL