Poligrip with zinc was discontinued and users were warned to stop using it in 2011. At that time, a lawsuit against the makers of Poligrip denture adhesive cream was announced, claiming that denture wearers were not adequately warned about high levels of zinc in the product.
GlaxoSmithKline was ordered to pay more than $120 million to consumers who were hurt by the use of Poligrip denture adhesive, according to a Reuters report. It is claimed that the makers of Poligrip settled more than 100 lawsuits. In 2011, all zinc was removed from Poligrip formulas.
Trace amounts of zinc are basic to human health. Too much zinc depletes copper and can cause neuropathy, which when caused by zinc overconsumption presents symptoms that include tingling and numbness of the extremities, overall weakness and loss of strength.