Diphenhydramine HCl Terpine Hydrate Ammonium Chloride Sodium Citrate Menthol Syrup is a general medicine in liquid form that is manufactured, exported, and supplied from India. It is suitable for all and can be taken as directed by a physician. The syrup contains Diphenhydramine HCl, which is an antihistamine used to relieve symptoms of allergies, and Terpine Hydrate, which is an expectorant used to loosen mucus in the chest. Ammonium Chloride and Sodium Citrate are used to regulate the acidity of the syrup, and Menthol provides a cooling effect that helps to soothe irritated throat and nasal passages. This medicine is effective in providing relief from cough, cold, and flu symptoms such as congestion, runny nose, and sneezing. It is also helpful in treating mild to moderate allergic reactions such as hives, itching, and rash. The liquid form of the medicine makes it easy to swallow and fast-acting, providing quick relief from symptoms.