My vitamins say they contain polyvinyl alcohol. will this make a drug test positive for alcohol?

No, however...: No, this chemical does not have any real relationship to the type of alcohol we drink and will not raise your alcohol level one bit. However, while considered non-toxic, I do not think it's wise to take a vitamin with synthetic chemicals like this. It is probably a sign that this is not the best quality vitamin; there are many better choices. See http://tinyurl.com/mzrkbx8