syrup ## syrup ## Pancof Xp is a decongestant, narcotic cough suppressant, and expectorant combination used to treat cough and to relieve congestion due to colds or flu. It may also be used for other conditions as determined by your doctor. SIDE EFFECTS, that may go away during treatment, include nervousness, dizziness, trouble sleeping or drowsiness, nausea, constipation, or headache. If they continue or are bothersome, check with your doctor. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist. IF YOU HAVE HAD A SEVERE ALLERGIC REACTION to codeine, hydrocodone, dihydrocodeine, or oxycodone (such as Tylox, Tylenol with Codeine, Vicodin), contact your doctor or pharmacist BEFORE TAKING THIS MEDICINE. A severe allergic reaction includes a severe rash, ...