Anxiolytics and sleep medicines: sedation, falls, dependence and withdrawal
- Safe practice
Benzodiazepines and sleep medicines calm quickly but sedate, cause falls and dependence; the nurse watches breathing, prevents falls and plans a slow taper.
What it is
Benzodiazepines relieve anxiety within a short time and are also used for sedation and seizures. Tolerance and dependence develop with long use, so they are usually prescribed for short periods and stopped by slow tapering. Combined with opioids or alcohol they can cause deep sedation, respiratory depression and death. Buspirone works only after daily use for a few weeks and is not taken «as needed». Z-drug hypnotics can cause complex sleep behaviours such as sleep-driving. The nurse assesses sedation and breathing, prevents falls, teaches and supports non-drug sleep measures.
What it requires
- A sedation and respiratory check after giving the medicine, as the institutional protocol sets.
- A fall-risk assessment and precautions (bed low, call bell at hand, help to walk).
- A list of other depressants the person receives (opioids, other sedatives, alcohol use).
- Sleep-hygiene and relaxation teaching as the first option for sleep problems.
Components
- Safety: sedation, breathing, falls, driving.
- Dependence and withdrawal: duration of use, misuse risk, tapering plan.
- Specific medicines: benzodiazepines, buspirone, hydroxyzine, Z-drug hypnotics.
- Non-drug support: sleep routine, stress management, relaxation.
How it is applied (and why)
- Ask about opioids, alcohol and other sedatives before giving the dose — the combination can cause deep sedation and stop breathing.
- Check sedation level, breathing rate and saturation after the dose as the protocol sets — older adults and children are most sensitive.
- Put fall precautions in place and ask the person to call before getting up — benzodiazepines and hypnotics raise fall risk.
- With Z-drugs, give the dose when the person is ready to stay in bed all night — getting up early brings drowsiness and memory problems.
- Ask the person and family about sleep-walking, eating or driving while not fully awake and report it — complex sleep behaviours can be dangerous.
- Teach not to drive or use machinery while drowsy and not to drink alcohol — effects add to each other and slow reactions.
- Explain that buspirone is taken daily and works in weeks, not «as needed» — expecting a fast effect leads to stopping it.
- Teach that long use must end with a slow taper planned by the prescriber — abrupt stopping causes withdrawal or rebound anxiety.
- Offer sleep hygiene and relaxation first and keep a regular routine — these measures improve sleep quality without sedation.
In nursing practice
- Signs of overdose range from drowsiness to coma: call the rapid response team, keep the airway open and monitor vital signs and fluid balance.
- Benzodiazepines can harm the fetus: report pregnancy to the prescriber.
- In people with a history of substance use, benzodiazepines are used with special caution because of the high risk of misuse and addiction.
- Hydroxyzine also sedates and must be used carefully with opioids or other sedatives.
Common mistakes
- Giving an «as-needed» benzodiazepine to a person who just received an opioid without checking sedation.
- Letting a sedated older adult walk to the bathroom alone.
- Stopping a long-used benzodiazepine on discharge without a taper plan.
- Giving a hypnotic early in the evening and leaving the person to wander the ward.
Test yourself
Think of the answer, then tap the question to see it.
Why is a benzodiazepine dangerous together with an opioid?
Both depress the central nervous system; together they can cause profound sedation, respiratory depression, coma and death.
Which withdrawal symptoms can follow stopping a benzodiazepine suddenly?
Sleep problems, irritability, tension and anxiety, tremor, sweating, poor concentration, nausea, palpitations, headache and perceptual changes.
Why is buspirone not given «as needed»?
It must be taken every day for a few weeks to reach its full effect.
What should a person know before taking a Z-drug hypnotic?
To take it when ready to stay in bed for a full night and to report any activity done while not fully awake, such as sleep-driving.
Elsewhere in DurgiPedia
Connections
Educational content for students; it does not replace your institution's protocols, supervised clinical training or a prescriber's order. Dose-calculation examples use made-up numbers: they are educational, not a clinical order.
Sources: Nursing: Mental Health and Community Concepts, 9.4: Treatments for anxiety (Open RN, Wisconsin Technical College System (CC BY 4.0), LibreTexts, 2022); Zolpidem (drug information) (MedlinePlus, U.S. National Library of Medicine, 2026); Nursing: Mental Health and Community Concepts, 3.2: Stress (Open RN, Wisconsin Technical College System (CC BY 4.0), LibreTexts, 2022).
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Representative model, for educational purposes only.