White plus black cold medicine, we are all more familiar with, taking white tablets during the day and black tablets at night. The black tablet is called Aminamphetamine tablet, the main ingredients are acetaminophen, pseudoephedrine hydrochloride, dextromethorphan hydrobromide and benadryl hydrochloride, mainly used to solve the fever, headache, sore throat, muscle ache, nasal congestion, runny nose, sneezing, watery eyes and other problems that occur when you have a cold, the benadryl hydrochloride contained in it also helps you sleep at night. Acetaminophen, an antipyretic and anti-inflammatory drug, is responsible for reducing fever and relieving pain; pseudoephedrine hydrochloride, which constricts the blood vessels of the nasal mucosa and relieves nasal congestion; dextromethorphan hydrobromide, which is responsible for relieving cough; and diphenhydramine hydrochloride, an anti-allergy drug, which relieves the symptoms of runny nose and sneezing of cold patients and also helps sleep. The white tablet is called Aminophenol Pseudomefenestradiol, and one ingredient less than the black tablet is Benadryl Hydrochloride, thus avoiding daytime sleepiness and drowsiness, with a more user-friendly design.