Hiding In Plain Sight: Mercury Still Lurks in Many Common Pharmaceutical Products 

While most people have heard that the mercury based preservative thimerosal was used in infant vaccines and continues to be used in several vaccine preparations, most consumers have no idea that mercury is also a commonly used ingredient in other pharmaceutical products including nasal sprays, eye drops, ear drops and injectable testosterone. Several hundred peer-reviewed scientific studies have been published over the last seven decades by leading research scientists and public health agencies confirming that thimerosal is a potent neurotoxin. It has never been proven safe for medical use—and cost-effective alternatives exist.