Europe — EMA
Novalgin (Metamizole Sodium Monohydrate)
GNH USA supplies Novalgin (Metamizole Sodium), a non‑opioid analgesic for mild to moderate pain, postoperative pain and fever.
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What is Metamizole Sodium Monohydrate?
Metamizole Sodium, the active ingredient in Novalgin, is a pyrazolone non‑opioid analgesic presented as an oral tablet for systemic use. It treats mild to moderate pain, postoperative pain, colic and fever in adults.
GNH USA supplies Novalgin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.
What is Metamizole Sodium Monohydrate used for?
Novalgin is used for pain and fever management across several clinical situations.
- Mild to moderate pain: provides analgesia for everyday pain conditions. - Post‑operative pain: helps control discomfort after surgical procedures. - Colic: relieves visceral pain associated with gastrointestinal spasm. - Fever: reduces elevated body temperature in febrile states.
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 gastrointestinal upset. - Vomiting: occasional emesis. - Dizziness: transient light‑headedness. - Headache: mild to moderate intensity. - Rash: skin irritation or erythema. - Hypotension: occasional drop in blood pressure.
Serious or Rare Side Effects: - Agranulocytosis: severe reduction in white blood cells. - Severe allergic reactions: including anaphylaxis. - Stevens‑Johnson syndrome: rare skin disorder. - Blood dyscrasias: abnormal blood cell counts. - Hepatic injury: liver function impairment. - Renal failure: acute kidney injury in susceptible patients.
What precautions apply to Metamizole Sodium Monohydrate?
When prescribing Metamizole Sodium, clinicians should consider several safety aspects.
- Renal impairment: use with caution and monitor kidney function. - Hepatic dysfunction: assess liver enzymes before initiation. - History of blood disorders: avoid in patients with prior agranulocytosis. - Concomitant pyrazolones: avoid combined use to reduce toxicity risk. - Pregnancy: limit to situations where benefits outweigh potential risks. - Store at ambient temperature: keep in the original pack, protect from moisture.
What does Metamizole Sodium Monohydrate interact with?
Metamizole Sodium can interact with other medicines, requiring attention to the level of risk.
Major Interactions (Avoid): - Sulfonamide antibiotics: increased risk of agranulocytosis. - Cytotoxic chemotherapy agents: heightened bone‑marrow suppression. - Anticoagulants (e.g., warfarin): potential for enhanced bleeding.
Moderate Interactions (Monitor Closely): - NSAIDs: additive gastrointestinal irritation. - ACE inhibitors: possible additive hypotensive effect. - Diuretics: monitor electrolytes and renal function.



