If your cough has not improved after 7 days, or if you have a high fever, skin rash, or continuing headache with the cough, check with your doctor. These signs may mean that you have other medical problems.
This medicine will add to the effects of alcohol and other CNS depressants (medicines that slow down the nervous system, possibly causing drowsiness). Some examples of CNS depressants are antihistamines or medicine for hay fever, other allergies, or colds; sedatives, tranquilizers, or sleeping medicine; prescription pain medicine or narcotics; barbiturates; medicine for seizures; muscle relaxants; or anesthetics, including some dental anesthetics. Check with your doctor before taking any of the above while you are taking this medicine.
This medicine may also add to the effects of CNS stimulants, such as appetite suppressants and caffeine-containing beverages like tea, coffee, cocoa, and cola drinks. Avoid drinking large amounts of these beverages while taking this medicine. If you have any questions about this, check with your doctor.
This medicine may cause some people to become drowsy or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are not alert.