How Does Cold-Eeze Work

Zinc Gluconate is the active ingredient in Cold-EEZE®. The proprietary formula starts working immediately to release zinc ions in the mouth. Some scientists believe that the release of zinc ions inhibits the cold virus ability to replicate, shortening the duration of the common cold.

What are the side effects of Cold-EEZE?

Zinc — especially in lozenge form — also has side effects, including nausea or a bad taste in the mouth. Many people who used zinc nasal sprays suffered a permanent loss of smell. For this reason, Mayo Clinic doctors caution against using such sprays.

Does Cold Eeze cause high blood pressure?

Among over-the-counter cold remedies, decongestants cause the most concern for people who have high blood pressure. Decongestants relieve nasal stuffiness by narrowing blood vessels and reducing swelling in the nose. This narrowing can affect other blood vessels as well, which can increase blood pressure.