காஸ்ட்ரோஎன்டாலஜிஸ்டுகள்-மருத்துவம்The dosage of Phenergan Syrup for children varies according to their age and also the situation getting treated. Here's a standard guideline:Severe Allergic Reactions. Promethazine/phenylephrine might result in allergic reactions, that may be seriou