The side effects of Cold-Eeze include chills, fever and indigestion, according to Drugs.com. Fainting and shortness of breath can also occur after taking more than recommended.
Cold-Eeze is designed to help people overcome the symptoms of a cold sooner, as stated by the manufacturer's website. The over-the-counter product contains natural ingredients including zinc. It is also free of preservatives and colorings. When taking Cold-Eeze with other medications, consult a doctor or pharmacist to learn about drug interactions. The medication should only be taken by an adult. While side effects are rare, too much of the medication can cause adverse health conditions.