Concerns over Champix

Potential contamination of varenicline medicines being investigated by the TGA as batch recall begins The Therapeutic Goods Administraion (TGA) says it is investigating potential contamination of varenicline medicines with the nitrosamine impurity, N-nitrosovarenicline. The regulator says it "has been advised that very low levels of the N-nitrosovarenicline have been detected in Australian varenicline products". As