Lexotanil (Bromazepam)

Bromazepam is indicated for conditions within the anxiety disorder spectrum and related sleep disturbances.

• Anxiety disorders: reduces excessive worry and tension, improving daily functioning.
• Short‑term relief of anxiety symptoms: provides rapid calming effect during acute stress episodes.
• Insomnia associated with anxiety: helps initiate and maintain sleep when anxiety interferes with rest.

• Bromazepam acts as a positive allosteric modulator at the GABA‑A receptor complex. By binding to the benzodiazepine site, it enhances the affinity of the receptor for the inhibitory neurotransmitter GABA, increasing chloride ion influx and hyperpolarizing neuronal membranes. This potentiation of GABAergic transmission leads to reduced neuronal excitability, producing anxiolytic, sedative, and muscle‑relaxant effects.

Bromazepam may cause a range of adverse reactions, which are categorized by 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 head pain.
• Fatigue: persistent lack of energy.

Serious or Rare Side Effects

• Respiratory depression: slowed or shallow breathing, especially with other depressants.
• Severe allergic reaction: rash, itching, swelling, or difficulty breathing.
• Paradoxical agitation: increased anxiety, aggression, or hostility.
• Depression or suicidal thoughts: emergence of mood changes or self‑harm ideation.
• Dependence and withdrawal: physical reliance and symptoms upon abrupt cessation.
• Hepatic dysfunction: abnormal liver enzymes or jaundice.

Prior to prescribing bromazepam, clinicians should consider several safety precautions to minimize risk.

• Assess patient history: evaluate prior benzodiazepine use, substance abuse, or psychiatric conditions.
• Avoid abrupt discontinuation: taper the dose gradually to prevent withdrawal symptoms.
• Use caution in hepatic impairment: adjust dosing if liver function is compromised.
• Use caution with CNS depressants: monitor for additive sedation when combined with alcohol, opioids, or antihistamines.
• Monitor elderly patients: increased sensitivity to sedation and falls.
• Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Bromazepam can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid)

• Opioids: combined use may cause profound respiratory depression.
• Alcohol: additive CNS depression increases risk of sedation and accidents.
• Other benzodiazepines: additive sedative effects and heightened dependence risk.
• Barbiturates: synergistic CNS depression leading to severe sedation.
• General anesthetics: may potentiate anesthetic depth and delay recovery.

Moderate Interactions (Monitor Closely)

• Selective serotonin reuptake inhibitors (SSRIs): may increase sedation.
• Antiepileptic drugs (e.g., carbamazepine): can reduce bromazepam plasma levels.
• Antihistamines: may enhance drowsiness.
• Antihypertensives: potential additive hypotensive effect.
• Oral contraceptives: possible alteration of hormone levels, monitor efficacy.