How often should i take emergen c. Initiator and effector phase immune system Emergen C Vitamin C Orange Vitamins Dietary Dietary Supplements Children 6 months to 13 years of age—dose is based on body weight and. Does emergen c work reddit . Study after study has shown that vitamin c does little to nothing to prevent the common cold. Some people take it to treat colds. Children younger than 6 months of age—use and dose must be determined by your doctor. (which i did an accurate dose, tropicana 12 fl oz with two packs of the “1,000 mg vitamin c: Airborne helps when he knows that others around him at work are sick (he's a teacher, and there are always sick kids at school, or other teachers working through a cold), in that airborne, while it can't prevent him catching something, can lessen its length and severity. According to the researchers, one possible explanation is that vitamin c lowers the severity of cold symptoms, such as chills and coughs. But stud...