Europe — EMA
Novalgin (Metamizole Sodium Monohydrate)
GNH USA supplies Novalgin (Metamizole Sodium), a pyrazolone non‑opioid analgesic for acute and post‑operative pain, fever and visceral pain. Request a quote.
Request sourcing
What is Metamizole Sodium Monohydrate?
Metamizole Sodium, the active ingredient in Novalgin, is a pyrazolone non‑opioid analgesic presented as an injectable solution for intramuscular and intravenous use. It treats acute and postoperative pain, fever, and visceral colic in adult patients. GNH USA supplies Novalgin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals worldwide.
What is Metamizole Sodium Monohydrate used for?
Novalgin (metamizole sodium) acts on pain and fever pathways in various clinical settings.
Acute pain: provides rapid relief of severe short‑term pain. Post‑operative pain: reduces discomfort after surgical procedures. Fever: lowers elevated body temperature. Colic and visceral pain: alleviates spasm‑related abdominal discomfort.
What are the side effects of Metamizole Sodium Monohydrate?
Metamizole sodium may cause a range of adverse reactions.
Common Side Effects: - Injection site pain or erythema - Nausea or vomiting - Dizziness or light‑headedness - Transient hypotension - Mild skin rash - Headache
Serious or Rare Side Effects: - Agranulocytosis (dangerously low white blood cell count) - Anaphylactic shock - Stevens‑Johnson syndrome or toxic epidermal necrolysis - Severe hypotension requiring intervention - Hepatic failure or elevated liver enzymes - Blood dyscrasias such as thrombocytopenia
What precautions apply to Metamizole Sodium Monohydrate?
Use of Novalgin requires careful clinical assessment and monitoring.
Assess renal and hepatic function before initiating therapy. Monitor complete blood counts regularly, especially for signs of agranulocytosis. Use with caution in patients with known hypersensitivity to pyrazolones. Avoid in individuals with a history of severe blood dyscrasias. Administer only under medical supervision and adjust dose as needed. Store at ambient temperature: keep in original packaging, protect from moisture and direct sunlight.
What does Metamizole Sodium Monohydrate interact with?
Metamizole sodium can interact with several medications, necessitating vigilance.
Major Interactions (Avoid): - Warfarin: increased risk of bleeding. - Cyclosporine: heightened nephrotoxicity. - Sulfonamides: additive risk of blood dyscrasias. - ACE inhibitors: potentiated hypotensive effect. - Lithium: possible alteration of serum levels.
Moderate Interactions (Monitor Closely): - NSAIDs: additive gastrointestinal irritation. - Antidepressants (SSRIs/SNRIs): potential for serotonin syndrome. - Diuretics: enhanced hypotensive response. - Anticonvulsants (e.g., phenytoin): possible pharmacokinetic changes. - Alcohol: increased sedation and dizziness.



