For over 60 years, pharmacists and doctors have recommended Emetrol as a safe and effective over-the-counter treatment for the relief of nausea associated with upset stomach. About Emetrol. Unlike products that coat the stomach, Emetrol treats the source of the problem by calming the stomach muscle contractions that can lead to vomiting. Emetrol is strong enough for adults and safe for children ages 2 and up. And Emetrol contains no antihistamines, alcohol, aspirin, or caffeine. ¹ Emetrol was named by U.S. News & World Report and Pharmacy Times as the #1 pharmacist-recommended brand in the “Nausea Remedies” category for 2019-2020.