A 17-year-old male patient consulted a therapist about malaise, chills, runny nose, aching muscles and joints, nausea and diarrhea. The patient asks to prescribe him a lot of painkillers and sedatives (tramadol or solpadein that help the best, and diazepam). Pharyngeal mucosa is pale pink, clean. Auscultation reveals vesicular breathing. Tachycardia is present. The pupils are dilated, there is sluggish response to light. There are injection marks on the forearm skin. During examination, the patient’s manner is vulgar, irritable, rude and untruthful. Make a diagnosis: