Neurol (Alprazolam)

Alprazolam is a benzodiazepine that modulates the central nervous system to reduce excessive anxiety.

• Generalized anxiety disorder: alleviates persistent worry and tension.
• Panic disorder: reduces the frequency and intensity of panic attacks.
• Short‑term anxiety associated with stressful situations: provides rapid symptom relief.

• Alprazolam acts as a positive allosteric modulator at the GABA_A receptor complex. By binding to the benzodiazepine site, it enhances the inhibitory effect of the neurotransmitter gamma‑aminobutyric acid (GABA), increasing chloride ion influx and hyperpolarising neuronal membranes, which results in decreased neuronal excitability and a calming effect.

Adverse reactions may 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.
• Memory impairment: difficulty recalling recent events.
• Headache: mild to moderate cranial pain.
• Fatigue: persistent lack of energy.

Serious or Rare Side Effects

• Respiratory depression: slowed or shallow breathing.
• Severe allergic reaction: rash, swelling, or anaphylaxis.
• Depression or suicidal thoughts: mood changes requiring urgent evaluation.
• Withdrawal seizures: risk when discontinuing abruptly after prolonged use.
• Paradoxical reactions: increased anxiety, agitation, or aggression.
• Hepatic dysfunction: abnormal liver enzyme elevations.

Careful assessment and monitoring are required before and during therapy.

• Dependence risk: prolonged use may lead to physical or psychological dependence.
• Pregnancy safety: category D; avoid use unless benefits outweigh risks.
• Concomitant CNS depressants: avoid alcohol and other sedatives.
• Hepatic impairment: dose adjustment may be necessary in liver disease.
• Discontinuation: taper gradually under medical supervision to prevent withdrawal.
• Store at ambient temperature: keep below 25 °C, retain in original packaging, protect from moisture and light.

Alprazolam can interact with several drug classes, altering its efficacy or safety profile.

Major Interactions (Avoid)

• Opioids: combined respiratory depression.
• Other benzodiazepines or sedative hypnotics: excessive CNS depression.
• Alcohol: heightened sedation and impairment.
• Ketoconazole or other strong CYP3A4 inhibitors: increased alprazolam plasma levels.
• Rifampicin (CYP3A4 inducer): reduced therapeutic effect.

Moderate Interactions (Monitor Closely)

• Selective serotonin reuptake inhibitors (SSRIs): potential for increased sedation.
• Antihistamines: additive drowsiness.
• Antihypertensives: possible orthostatic hypotension.
• Antiepileptic drugs (e.g., carbamazepine): may lower alprazolam concentrations.
• Oral contraceptives: slight reduction in efficacy.