A 24 year-old HIV patient is brought to the emergency room for nausea, vomiting, diarrhea, abdominal cramps, goosebumps, muscle aches for the last 3 days. His sickness started a week ago with ‘flu’ like symptoms such as watery eyes, sweating, runny nose, tiredness and trouble sleeping. Physical examination is significant for pupillary dilation and piloerection. Patient opened his medication bag and showed you bottles of methadone, rifampin, and ibuprofen. On further questioning he reports that he has been taking methadone for opioid dependence, rifampin for tuberculosis and ibuprofen for headaches. What is the next best step in the management of this patient?
