Dr. Andrew Weil reports that a number of lawsuits have been filed against manufacturers of Zicam and Cold-Eeze nasal sprays. The lawsuits allege that the zinc gluconate in the nasal sprays causes people to lose their sense of smell. The loss of the sense of smell is known as anosmia. The FDA is looking into these complaints. Zinc in other forms has caused anosmia in lab animals.