Many prescription drugs are abused, so it is difficult to list all the symptoms that users suffering with drug addiction may exhibit. However, there are some that are common to many prescription drugs. People suffering from prescription drug addiction may display alterations in mood, erratic behaviour, confusion, insomnia or excessive sleep, anxiety, hyperactivity, suicidal tendencies, mental cloudiness and even changes in their physical appearance.
Long-term use of prescription drugs such as opioids or central nervous system depressants can lead to addiction and physical dependence. Opioid drugs can also cause drowsiness and constipation and if taken in high enough doses can depress the respiratory system.They may also cause diarrhoea, vomiting, muscle and joint pains, restlessness and involuntary movements.Central nervous system depressants will slow brain activity and if taken with other drugs, such as alcohol, heart and respiratory rates can drop to dangerous levels.The individual may also exhibit unsteady movements, difficulty with memory, poor judgement and confusion.
When taken repeatedly, in high doses, stimulants can lead to anxiety, dangerously high body temperatures, extreme agitation or irritability, paranoia, irregular heartbeat and possibly seizures.Other symptoms can include hostility, unexplained weight loss, insomnia and, less commonly, cardiovascular failure.
In addition to the physical effects of the drugs they can also adversely affect an individual’s life, leading to problems with personal relationships, financial difficulties, employment difficulties, job loss, legal issues and psychological problems.Individuals who attempt to come off the drugs without assistance experience withdrawal symptoms.