Homeopathic. Zinc gluconate glycine. All natural honey lemon flavor with other natural flavors. Great new taste. Gluten-free. Clinically proven to reduce the duration of the common cold. Shortens your cold, works fast. No. 1 pharmacist recommended. Start taking Cold-Eeze at the first sign of a cold and get well sooner! Clinical Studies Have Shown: The Cold-Eeze proprietary formula reduces the duration and severity of colds by nearly half, 3 to 4 days. The independent double blind placebo controlled studies were conducted at the Cleveland Clinic and Dartmouth College and published in peer reviewed journals. Cold-Eeze is safe to take with most other medications, (see warnings). Does not cause drowsiness. Does not cause light headedness. Does not affect blood pressure. Made in USA.