This study evaluated the blood levels of vitamin B12 in HIV patients who were treated with the anti-viral drug zidovudine. 200 HIV-infected persons were investigated. The results showed that decreased vitamin B12 levels were frequently found in HIV patients treated with the anti-viral therapy. Further details can be found in the study.
O Paltiel, J Falutz, M Veilleux, D S Rosenblatt, K Gordon