Dr. Christopher"s Respiratory Syrup - 4 oz (118 mL) Dr. Christopher"s Respiratory Syrup provides natural, effective respiratory support that is science-based. That"s why people all over the world recommend Dr. Christopher"s Respiratory Syrup. Dr. Christopher"s Respiratory Syrup provides lower respiratory support. has been approved as an herbal medicinal product in European countries due to its clinical trials for both efficacy and safety in adults. Dr. Christopher"s Respiratory Syrup has been the subject of multiple randomized, double-blind, placebo-controlled clinical trials. Dr. Christopher"s Respiratory Syrup does not contain stimulants, caffeine, ephedra or pseudoephedrine. Are Dr. Christopher"s products safe for diabetics? Dr. Christopher"s products are all naturally made from whole food vitamins, but there are a few products that have Nutritional Yeast in them, like Vitalerbs, Jurassic Green, Mindtrac & Kid-e-Mins. Some extracts have a corn base vegetable glycerine. Many diabetics have used the formulas safely for years & have had much success. Mission & Quality StatementQuality Products for You! Dr. Christopher"s Mission is to provide natural whole food dietary supplements according to the Dr. John R. Christopher ND, MH philosophy at fair prices with excellent service. Dr. Christopher"s Original Formulas are time-tested & have been manufactured since 1945 & trusted by millions of people because they work. Time & time again, they hear from customers that they tried another brand but did not experience the same results as with Dr. Christopher"s Formulas. To this, this reply it"s because the quality & experience that is put into every bottle we make. From the fields that harvest our herbs, through the state of art manufacturing processes, down to the finish product that our customers take daily.Dr. John R. Christopher was a pioneer of natural supplements that are very common today.