Generic name: Pseudoephedrine / Hydrocodone
P-V Tussin is used to relieve cough and congestion, associated with flu, colds, or hay fever. It may also be used by your physician to treat certain other conditions.
It refers to cough suppressant and decongestant combination. The decongestant constricts blood vessels and reduces the nasal passages swelling. This promotes easy breathing. The cough suppressant makes the brain to reduce cough reflex and dry cough.