Wheeze or breath shortness
Difficulty to pee
Restlessness, tremor, spasms, chest pain and rapid heartbeat
Increased body temperature and chills
Very strong headache
Agitated and irascible behavior
Paranoia, hallucinations, anxiety and psychotic behavior.
Low heartbeat and breath pace
Bluish lips and fingertips
Snoring or yawning
Difficulty to wake up
Check yourself and others who used the same substance
Check whether they respond when you call or touch them
Keep free mouth and nose of those who are sick
If they breathe normally put it lying down, with legs and head on the recovery position, preventing to ingest their vomit
If they do not breathe, start cardiac massage, with 30 compressions on the breast every two breaths.