Diarrhea/loose stool, dry mouth, dyspepsia, abdominal pain, constipation, pancreatitis, nausea, vomiting, sexual dysfunction (principally ejaculatory delay in males), anorexia, increased appetite, hyponatremia, dizziness, somnolence, tremor, coma, convulsions, headache, hypoesthesia, migraine, movement disorders, involuntary muscle contractions, paresthesia, syncope, insomnia, aggressive reaction, agitation, anxiety, depressive symptoms, euphoria, hallucination, decreased libido, paroniria, psychosis, increased sweating, alopecia, angioedema, face edema, periorbital edema, photosensitivity skin reaction, pruritus, purpura, rash, urticaria.