Tramadol may be habit-forming. Tell your
doctor if you feel the medicine is
not working as well in
pain. Do not change your dose without talking to your doctor. Do not stop using tramadol suddenly, or you could have unpleasant withdrawal symptoms such as anxiety, sweating, nausea, diarrhea, tremors, chills, hallucinations, trouble sleeping, or breathing problems. Talk to your doctor about how to avoid withdrawal symptoms when stopping the medication.