Addiction to pharmaceutical medication can happen to absolutely anyone, although factors such as your personality, your genetic makeup and the medication you are taking will influence the possibility. Some prescription drugs will ease not only physical pain, but also psychological pain such as depression, anxiety and loneliness. This is particularly true of opioids which produce a feeling of euphoria. This can be very addictive, as the drug becomes an effective means of escape, providing a welcome relief from the strains of everyday life.