They are impossible to see. Usually, the addict feels the first effects of the drug 30 to 90 minutes after taking it. Among the physical effects include: dilated pupils, elevated body temperature, increased pulse rate and blood pressure, heart, sweating, loss of appetite, insomnia, dry mouth and tremors.

Sensations and feelings change too. The person consuming the drug may feel several different emotions at once or swing rapidly from one emotion to another. Reverse the direction of time and consciousness itself in the individual. All these changes may cause fear or panic. Who consume can also experience: confusion, suspicion, anxiety and sense of inadequacy and loss of control.