Nefopam Hydrochloride Meda (Nefopam Hydrochloride)

Nefopam Hydrochloride is used to relieve pain by acting on central pain pathways. It is indicated for several types of moderate pain.

• Moderate acute pain: provides analgesia for sudden, short‑term pain episodes such as injury or dental procedures.
• Post‑operative pain: helps control discomfort following surgical interventions.
• Musculoskeletal pain: alleviates pain associated with strains, sprains, and other musculoskeletal conditions.

• Nefopam Hydrochloride inhibits the reuptake of serotonin, norepinephrine, and dopamine while also blocking voltage‑dependent sodium channels. This combined action reduces neuronal excitability and modulates central pain transmission, resulting in analgesic effects without opioid receptor involvement.

Nefopam Hydrochloride may cause a range of adverse reactions.

Common Side Effects

• Nausea: mild to moderate stomach upset.
• Dry mouth: reduced salivation.
• Sweating: increased perspiration.
• Dizziness: sensation of light‑headedness.
• Constipation: reduced bowel movements.
• Blurred vision: temporary visual disturbances.

Serious or Rare Side Effects

• Tachycardia: rapid heart rate requiring medical attention.
• Seizures: rare convulsive episodes.
• Severe hypotension: marked drop in blood pressure.
• Allergic reactions: rash, itching, or swelling.
• Agranulocytosis: very low white‑blood‑cell count, a hematologic emergency.

When prescribing Nefopam Hydrochloride, clinicians should consider several safety measures.

• Renal function assessment: adjust use in patients with impaired kidney function.
• Blood pressure monitoring: watch for hypertension or hypotension.
• Seizure disorder avoidance: avoid in patients with a history of seizures.
• Concomitant antidepressants caution: assess risk of serotonin syndrome when combined with SSRIs or MAO inhibitors.
• Anticoagulant interaction review: monitor bleeding risk if used with warfarin or similar agents.
• Store at room temperature: keep in the original packaging, protect from moisture and direct sunlight.

Nefopam Hydrochloride can interact with other medicines, requiring careful management.

Major Interactions (Avoid)

• Monoamine oxidase inhibitors (MAOIs): risk of severe serotonin syndrome.
• Selective serotonin reuptake inhibitors (SSRIs): increased serotonin toxicity.
• Tricyclic antidepressants: heightened serotonergic effects.

Moderate Interactions (Monitor Closely)

• Antihypertensive agents: possible additive blood‑pressure lowering.
• Anticholinergic drugs: may exacerbate dry mouth and constipation.
• Central nervous system depressants: potential for enhanced sedation.