You should not take tramadol if you have severe breathing problems, a blockage in your stomach or intestines, or if you have recently used alcohol, sedatives, tranquilizers, narcotic medication, or an MAO inhibitor (isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others). Tramadol can slow or stop your breathing, and may be habit-forming. MISUSE OF THIS MEDICINE CAN CAUSE ADDICTION, OVERDOSE, OR DEATH, especially in a child or other person using the medicine without a prescription. Tramadol should not be given to a child younger than 12 years old. Ultram ER should not be given to anyone younger than 18 years old. Taking tramadol during pregnancy may cause life-threatening withdrawal symptoms in the newborn.