Europe — EMA
Novaminsulfon Lichtenstein (Metamizole Sodium Monohydrate)
GNH USA supplies Novaminsulfon Lichtenstein (Metamizole Sodium), a non‑opioid analgesic for pain relief and fever reduction.
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What is Metamizole Sodium Monohydrate?
Metamizole Sodium, the active ingredient in Novaminsulfon Lichtenstein, is a non‑opioid analgesic (pyrazolone) presented as a rectal formulation for rectal use. It is employed to relieve moderate to severe pain and to reduce fever in adult patients. GNH USA supplies Novaminsulfon Lichtenstein as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.
What is Metamizole Sodium Monohydrate used for?
Metamizole Sodium is a non‑opioid analgesic used for pain and fever management. - Pain relief: provides effective analgesia for moderate to severe acute pain. - Fever reduction: lowers elevated body temperature in febrile conditions. - Post‑operative pain: helps control pain following surgical procedures. - Cancer‑related pain: may be incorporated into multimodal analgesic regimens for oncologic patients. - Acute musculoskeletal pain: alleviates discomfort from injuries or strain.
What are the side effects of Metamizole Sodium Monohydrate?
Metamizole Sodium may cause a range of adverse reactions, from mild to severe.
Common Side Effects: - Nausea: mild to moderate stomach upset. - Vomiting: occasional emesis following administration. - Dizziness: transient light‑headedness or vertigo. - Hypotension: temporary drop in blood pressure. - Skin rash: mild erythematous reactions. - Elevated liver enzymes: transient increase in hepatic markers.
Serious or Rare Side Effects: - Agranulocytosis: severe reduction in white blood cells, requiring immediate medical attention. - Anaphylaxis: life‑threatening allergic reaction with airway compromise. - Stevens‑Johnson syndrome: severe skin and mucous membrane disorder. - Toxic epidermal necrolysis: extensive skin detachment and systemic involvement. - Blood dyscrasias: abnormal blood cell counts beyond agranulocytosis. - Severe hypotension: profound circulatory collapse.
What precautions apply to Metamizole Sodium Monohydrate?
When prescribing Metamizole Sodium, clinicians should observe several safety measures. - Baseline blood count: obtain complete blood count before initiating therapy. - Monitor for infection: watch for signs of neutropenia or infection during treatment. - Hepatic impairment: use cautiously in patients with liver disease. - Known hypersensitivity: avoid in individuals with documented allergy to pyrazolones. - Renal dysfunction: adjust use in patients with compromised kidney function. - Store at room temperature: keep in the original packaging, protect from moisture and direct sunlight.
What does Metamizole Sodium Monohydrate interact with?
Metamizole Sodium can interact with other medicines, necessitating careful review.
Major Interactions (Avoid): - Anticoagulants: increased risk of bleeding. - Other NSAIDs: heightened gastrointestinal toxicity. - Allopurinol: elevated risk of agranulocytosis.
Moderate Interactions (Monitor Closely): - ACE inhibitors: potential for reduced renal function. - Diuretics: may enhance hypotensive effects. - Lithium: possible increase in lithium serum levels.



