Phenacarbamol Capsules is a cold medicine, a combination of four drugs, acetaminophen, caffeine, pseudoephedrine hydrochloride and paracetamol, mainly used to treat cold, including fever, headache, sore throat, muscle aches, stuffy nose, runny nose and sneezing caused by common cold and influenza; it can also be used to relieve joint pain and nerve pain. Acetaminophen, also known as paracetamol, is an antipyretic and anti-inflammatory drug that will reduce fever and relieve pain. Pseudoephedrine hydrochloride can constrict the blood vessels of the nasal mucosa and treat nasal congestion. Paracetamol is an anti-allergy drug that can reduce the symptoms of runny nose, sneezing and nasal congestion that occur when you have a cold. Caffeine is a brain stimulant that can enhance the effect of acetaminophen in treating headache, as well as refreshing and anti-fatigue, and reducing the adverse effects of other drugs such as sleepiness, dizziness and drowsiness. Phenacamine capsule is an allopathic medicine that can only treat the symptoms, not the root cause, and is only used to relieve symptoms.