Take this medication by mouth as prescribed. It is usually taken every four to six hours when needed. Use medicines just as prescribed. Do not improve your dose, apply it with greater regularity or utilize it for a longer period of energy than prescribed because this drug could be habit-forming. Also, if employed for a prolonged period of your time, usually do not suddenly stop using this drug without your doctors approval. When used for extended periods, medicines may not work as well and could require different dosing. Consult your doctor if the medication stops working well.