Benzodiazepines

Benzodiazepines

Drug monograph · NCLEX study reference
Trade names	Ativan, Xanax, Klonopin, Valium, Restoril
Therapeutic class	Anxiolytic, sedative, anticonvulsant
Pharmacologic class	Benzodiazepines (controlled C-IV)
Onset / peak / duration	Vary by agent; diazepam fast onset and long acting; lorazepam intermediate; alprazolam short; temazepam for sleep.
Half-life / level	Wide range (alprazolam short, diazepam and clonazepam long); level not routine.
Routes	PO (oral), IV, IM
High-alert (ISMP)	No
Black box warning	Yes (see Safety)
Antidote / reversal	Flumazenil (use cautiously; can precipitate seizures in dependent patients).
Pregnancy / lactation	Generally avoided.

Nursing pharmacology study reference (NCLEX-style monograph). Numeric values are standard teaching ranges for study and must be verified against current manufacturer labeling before clinical use. This is educational content, not prescribing guidance.

Benzodiazepines (brand names Ativan, Xanax, Klonopin, Valium, Restoril) — Anxiolytic, sedative, anticonvulsant; Benzodiazepines (controlled C-IV).

Identification

• Therapeutic class: Anxiolytic, sedative, anticonvulsant.
• Pharmacologic class: Benzodiazepines (controlled C-IV).

Pharmacology

• Mechanism of action: Enhance GABA to produce sedation, anxiolysis, muscle relaxation, and anticonvulsant effects.
• Onset / peak / duration: Vary by agent; diazepam fast onset and long acting; lorazepam intermediate; alprazolam short; temazepam for sleep.
• Half-life / therapeutic level: Wide range (alprazolam short, diazepam and clonazepam long); level not routine.

Clinical use

• Indications: Anxiety and panic, seizures and status epilepticus (lorazepam, diazepam), alcohol withdrawal, sedation, insomnia (temazepam), muscle spasm.
• Usual dose, route, frequency: PO; lorazepam and diazepam also IV and IM.
• Maximum dose / adjustments: Lowest effective dose for the shortest time; reduce in elderly and hepatic impairment; taper to stop.

Safety

• Contraindications: Severe respiratory depression, acute narrow-angle glaucoma, sleep apnea (caution), myasthenia gravis.
• Black box warning: Concomitant use with opioids can cause profound sedation, respiratory depression, coma, and death; benzodiazepines also carry risks of abuse, dependence, and withdrawal.
• Interactions: Opioids and other CNS depressants and alcohol (respiratory depression), CYP3A4 inhibitors, grapefruit (food).
• Pregnancy / lactation: Generally avoided.
• High-alert: No.

Adverse effects

• Common side effects: Sedation, dizziness, ataxia, confusion (especially elderly).
• Serious effects to report: Respiratory depression, paradoxical agitation, dependence, severe withdrawal (seizures) if stopped abruptly.
• Antidote / reversal: Flumazenil (use cautiously; can precipitate seizures in dependent patients).

Nursing process

• Assessment before administration: Respiratory status, sedation level, fall risk, substance history.
• Interventions during therapy: Give IV slowly; monitor respirations; taper to stop; fall precautions.
• Monitor: Respiratory rate, sedation, mental status.
• Evaluation / expected outcome: Reduced anxiety, seizures controlled, or sleep improved.

Patient teaching

• Patient teaching: Avoid alcohol and opioids; do not stop abruptly; risk of dependence.
• Notify provider if: Slowed breathing, severe drowsiness, worsening anxiety or agitation.
• Administration tips: IV slow; short-term use preferred; taper to discontinue.