Adults and children over 12 years: Take two tablets in the evening at bedtime as necessary. Maximum of 8 tablets in 24 hours.
Chlorpheniramine may cause drowsiness. If drowsy, do not drive a vehicle or operate machinery. Avoid alcohol. If symptoms persist see your doctor. Do not use if you have taken paracetamol or anti-histamines within the last four hours. Ask your doctor before taking if you have high blood pressure, are taking anti-depressants, have heart problems or are pregnant. Phenylephrine may cause sleeplessness in some people.