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Health effects

Short-term effects

Medically, benzodiazepines are prescribed for between two weeks and one month. Benzodiazepines should be used for only a short time in order to avoid developing a tolerance to the drug and experiencing withdrawal symptoms when use is stopped.

If recommended doses are administered, for the correct time, the following short-term effects include:

  • relaxation
  • calmness
  • relief from tension and anxiety
  • drowsiness and sleepiness, leading to an induced state of sleep.

When benzodiazepines are taken at higher doses, effects similar to those of alcohol can be produced including:

  • drowsiness and sleepiness, leading to an induced state of sleep
  • over-sedation
  • cognitive and coordination impairment
  • mood swings
  • aggressive outbursts.

It is common for recreational users to take high doses of benzodiazepines as they are not always aware of recommended dosages, and are administering the drug to achieve a state of intoxication.

Long-term effects

Long-term use (exceeding one month) of benzodiazepines is not recommended and should be monitored by a doctor. Long-term use of benzodiazepines may cause:

  • drowsiness and sleepiness, leading to an induced state of sleep
  • lack of motivation
  • unclear thoughts, memory loss
  • behavioural and personality changes
  • anxiety, irritability or aggression
  • difficulty sleeping and disturbing dreams
  • nausea, headaches
  • skin rash
  • menstrual and sexual problems
  • greater appetite, weight gain
  • lack of coordination, vulnerability to accidents
  • depression
  • slurred speech.

Long-term use of benzodiazepines commonly causes similar conditions to those which the drug has been prescribed to relieve.

Any adverse effects experienced while on benzodiazepines should be discussed with a health professional. Stopping long-term or heavy use of benzodiazepines – whether by a recreational user or someone using them for medical reasons – will require medical attention to help prevent withdrawal syndrome or a relapse to the underlying condition.