Nefopam (Nefopam Hydrochloride)

Nefopam, the active ingredient in Nefopam, is a non‑opioid analgesic presented as an oral tablet for systemic use. It is indicated for the management of moderate acute pain, post‑operative pain and musculoskeletal pain, providing relief in adult patients when opioid therapy is not required.

GNH USA supplies Nefopam as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, ensuring consistent quality and regulatory compliance across markets. The product is sourced from EU manufacturers and meets European pharmacopoeial standards.

Nefopam is used to manage pain conditions that involve central sensitization and acute nociceptive pathways.

- Moderate acute pain: provides analgesia for short‑term severe pain episodes. - Post‑operative pain: reduces pain intensity after surgical procedures. - Musculoskeletal pain: alleviates pain associated with strains, sprains and inflammatory conditions.

Nefopam may be associated with a range of adverse reactions, varying from mild to serious.

Common Side Effects: - Nausea: mild to moderate feeling of sickness, often transient. - Dry mouth: reduced salivation leading to a sticky oral sensation. - Sweating: increased perspiration, especially in warm environments. - Dizziness: sensation of light‑headedness that may affect balance. - Blurred vision: temporary visual disturbance that usually resolves. - Constipation: reduced bowel movements causing abdominal discomfort.

Serious or Rare Side Effects: - Seizures: risk of convulsive episodes, particularly at high doses. - Tachycardia: rapid heart rate that may be symptomatic. - Hypotension: low blood pressure leading to dizziness or fainting. - Allergic reactions: rash, urticaria, or angioedema indicating hypersensitivity. - Hepatotoxicity: liver enzyme elevations that may signal liver stress. - Blood dyscrasias: rare abnormalities in blood cell counts.

When prescribing Nefopam, clinicians should consider several precautionary measures to ensure safe use.

- Assess renal function: adjust use in patients with severe renal impairment. - Monitor cardiovascular status: avoid in uncontrolled hypertension or arrhythmias. - Evaluate psychiatric history: caution in patients with seizure disorders or severe anxiety. - Review concomitant serotonergic agents: risk of serotonin syndrome. - Avoid use in children: safety and efficacy not established. - Store at ambient temperature: keep tablets in original container, protect from moisture and direct sunlight.

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

Major Interactions (Avoid): - MAO inhibitors: risk of severe hypertension and serotonin syndrome. - SSRIs or SNRIs: increased serotonin levels may precipitate serotonin syndrome. - Tricyclic antidepressants: additive anticholinergic effects and seizure risk.

Moderate Interactions (Monitor Closely): - Antihypertensives: may blunt blood pressure‑lowering effect. - Anticonvulsants: possible reduction in seizure threshold. - Anticholinergic drugs: enhanced dry mouth and constipation. - CYP450 substrates: Nefopam may affect metabolism of drugs processed by CYP2D6.