Nos­trum Recalls More Lots of its Met­formin Due to Ni­trosamine Contamination Risks WASHINGTON D.C. - According to an endpts.com article, Nos­trum Laboratories, Inc. has expanded its generic Metformin recall due to possible ni­trosamine contamination. Nitrosamines are organic chemicals that can be created during a chemical … [Read more...] about Contamination Risks Cause Nostrum Met­formin HCl Ex­tend­ed Re­lease Recall