Lefisyo

Levomethadone Hydrochloride, the active ingredient in Lefisyo, is an opioid analgesic presented as an oral tablet for oral use. It is indicated for the treatment of opioid dependence and severe chronic pain in appropriate patients.

GNH USA supplies Lefisyo as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Levomethadone Hydrochloride acts on the opioid system to manage dependence and pain. - Opioid dependence: reduces withdrawal symptoms and cravings in individuals undergoing detoxification. - Severe chronic pain: provides long‑acting analgesia for patients with persistent, high‑intensity pain. - Opioid substitution therapy: serves as a maintenance option for patients requiring stable opioid receptor activation.

Levomethadone Hydrochloride may cause a range of adverse reactions.

Common Side Effects: - Nausea: mild to moderate upset stomach. - Constipation: reduced bowel motility. - Drowsiness: increased sleepiness. - Dry mouth: reduced salivation. - Sweating: excessive perspiration. - Dizziness: light‑headed sensation.

Serious or Rare Side Effects: - Respiratory depression: slowed breathing, potentially life‑threatening. - QT interval prolongation: cardiac rhythm disturbance. - Severe hypotension: marked drop in blood pressure. - Seizures: convulsive episodes. - Allergic reactions: rash, angioedema, or anaphylaxis. - Adrenal insufficiency: impaired stress response.

When prescribing Levomethadone Hydrochloride, clinicians should consider several safety measures. - Assess opioid tolerance: confirm patient’s prior exposure before initiating therapy. - Monitor respiratory function: especially during dose titration or in patients with pulmonary disease. - Evaluate cardiac risk: baseline ECG recommended due to QT prolongation potential. - Screen for hepatic impairment: adjust dosing if liver function is compromised. - Avoid abrupt discontinuation: taper gradually to prevent withdrawal. - Store at ambient temperature below 25°C: keep in the original pack, protect from moisture and light.

Levomethadone Hydrochloride can interact with various medications, requiring careful management.

Major Interactions (Avoid): - Concomitant CNS depressants: additive respiratory depression risk. - Monoamine oxidase inhibitors (MAOIs): may cause hypertensive crisis. - Other strong opioids: increase overdose potential.

Moderate Interactions (Monitor Closely): - Benzodiazepines: enhanced sedation, monitor respiratory status. - Selective serotonin reuptake inhibitors (SSRIs): potential for serotonin syndrome. - CYP3A4 inhibitors/inducers: may alter levomethadone plasma levels, requiring dose adjustment.