But some medicines, including colchicine, neomycin, metformin, anticonvulsants and drugs to control gastric acid secretion, can also increase the risk of vitamin B12 deficiency.
ແຕ່ຢາບາງຊະນິດ, ລວມທັງ colchicine, neomycin, metformin, anticonvulsants ແລະຢາເພື່ອຄວບຄຸມຄວາມລັບຂອງກົດໃນກະເພາະອາຫານ, ຍັງສາມາດເພີ່ມຄວາມສ່ຽງຂອງການຂາດວິຕາມິນ B12.