Hi, Does anyone know if taking antihistamines can cause a B12 deficiency? I have been taking antihistamines for 10 years now for rhinitus. I think all my symptoms etc and the lack of B12 stem from candida, but a doctor pooh poohed it as rubbish years ago, even though my diet was 80% sugar at the time........so I think this is why I have now ended up being on these antihistamines for so long. When I stay off sugar I don't get the sniffing and sneezing.....Thing is now I believe these innocent looking little pills may have caused me to be B12 deficient.
I would be grateful to anyone who has thoughts on this, or better still knows.
Thank you for reading my note.