Hi Tramadol is an Opioid analgesic that is centrally acting. As per your query here are the adverse effects of Tramadol... nausea, vomiting, dyspepsia, diarrhoea, headache, Dizziness, Hallucinations Sweating, Confusion, coordination disturbance, Paraesthesia, hypoaesthesia, amnesia, cognitive dysfunction, depression, dysphoria, constipation, abdominal pain, Respiratory depression, seizure, anorexia, flatulence, wt loss, gastroenteritis, pruritus, rash, dermatitis, urticaria, bronchospasm, angioedema, anaphylaxis, allergic reaction toxic epidermal necrolysis, vasodilation, orthostatic hypotension, syncope, tachycardia, flushing, chest pain Myocardial infarction Hypertension somnolence, weakness, CNS stimulation peripheral ischaemia, menopausal symptoms, dysuria, menstrual disorder, micturition difficulty, haematuria. palpitations etc. Precautions for Tramadol... emotional disturbance or depression patients history of epilepsy head injury, increased intracranial pressure. Renal and hepatic impairment etc. Thank u