Nitrazepam Accord-Uk (Nitrazepam)

Nitrazepam, a benzodiazepine that enhances GABA‑A mediated inhibition, is used for several central nervous system conditions.

• Insomnia: short‑term relief of difficulty falling or staying asleep in adult patients.
• Anxiety: reduction of acute anxiety symptoms and associated tension.
• Seizure disorders: adjunctive control of certain types of seizures, particularly in epilepsy management.
• Pre‑operative sedation: facilitation of anxiolysis and sedation before surgical procedures.

• Nitrazepam acts as a positive allosteric modulator of the GABA‑A receptor complex. By binding to a specific site on the receptor, it enhances the affinity of the neurotransmitter GABA, increasing chloride ion influx and producing an overall inhibitory effect on neuronal firing, which leads to sedation, anxiolysis, muscle relaxation, and anticonvulsant activity.

Nitrazepam may cause a range of adverse reactions, which vary in frequency and severity.

Common Side Effects

• Drowsiness: feeling unusually sleepy or fatigued.
• Dizziness: sensation of light‑headedness or unsteadiness.
• Impaired coordination: reduced motor control and balance.
• Memory impairment: difficulty recalling recent events.
• Headache: mild to moderate pain in the head.
• Fatigue: persistent lack of energy.

Serious or Rare Side Effects

• Respiratory depression: slowed or shallow breathing, especially with other depressants.
• Severe hypotension: marked drop in blood pressure leading to faintness.
• Paradoxical agitation: unexpected increase in anxiety or aggression.
• Depression or suicidal thoughts: mood changes requiring immediate attention.
• Severe skin reactions: rash, Stevens‑Johnson syndrome, or toxic epidermal necrolysis.
• Anaphylaxis: rare, life‑threatening allergic response.

When prescribing nitrazepam, clinicians should consider several safety measures.

• Assess renal and hepatic function: adjust use in patients with impairment.
• Avoid abrupt discontinuation: taper under medical supervision to prevent withdrawal.
• Use caution in elderly: increased sensitivity to sedation and falls.
• Avoid concomitant CNS depressants: risk of additive sedation and respiratory depression.
• Pregnancy and lactation: contraindicated unless benefits outweigh risks.
• Store at ambient temperature: keep in the original container, protect from moisture and light.

Nitrazepam can interact with other medicines, altering its effects or safety profile.

Major Interactions (Avoid)

• Other benzodiazepines: additive central nervous system depression.
• Opioids: heightened risk of respiratory depression and profound sedation.
• Alcohol: severe sedation, impaired coordination, and respiratory compromise.

Moderate Interactions (Monitor Closely)

• Antidepressants (SSRIs): may increase overall sedation.
• Antihistamines: can enhance drowsiness and dizziness.
• CYP3A4 inhibitors (e.g., erythromycin): may raise nitrazepam plasma levels, requiring dose adjustment.