Doxylamine
                                            
                                                                                                    Doxylamine Succinate
                                                                                            
                                        
                                        Doxylamine is a medication used to manage and treat allergic rhinitis, sneezing, runny nose, watery eyes, hives, skin rash, itching, and other cold or allergy symptoms, nausea and vomiting of pregnancy (NVP) and insomnia. It is in the first-generation histamine receptor H1 antagonist class of medications.