Flurest is used to treat nasal congestion, watery eyes, itchy throat, sneezing, headache, fever, and other symptoms associated with allergies, hay fever, and the common cold. Caffeine is a chemical that acts as a stimulant, facilitating the transmission of messages between the brain and the body. It is considered a mental stimulant. Caffeine is added to
Flurest to enhance the effects of paracetamol and reduce drowsiness caused by chlorpheniramine. Chlorphenoxamine is an antihistamine and anticholinergic, and is used as an antipruritic and antitumor. Paracetamol is a pain reliever and antipyretic. Phenylpropanolamine acts as a decongestant by constricting blood vessels in the body.