dedicated….Folic acid is a water-soluble B vitamin Folic acid often used in combination with other B vitamins. It also is used to prevent anemia (low red blood cell levels.) Often time’s chemo is halted due to low blood counts and then resumed when blood levels have risen to an acceptable level. I assume that your brother has a low red blood cell count; hence the physician ordered the folic acid and other B-vitamins. He may soon feel less fatigued also and may very well be ready for his next treatment.
I hope for others to chime in and share their thoughts with us also.
In the meantime though, I wish for a relaxed holiday season for your brother, his family, and for you. Hang in there, dear Dedicated and know that tons of support is heading your way.
Hugs and love
Marion