Novalgin Tropfen (Metamizole Sodium Monohydrate)

Metamizole Sodium Monohydrate is used for pain and fever management across several clinical situations.

• Mild to moderate pain: provides analgesia to relieve everyday discomfort.
• Post‑operative pain: helps control pain after surgical procedures.
• Colic and visceral pain: eases spasm‑related abdominal discomfort.
• Fever: reduces elevated body temperature in febrile states.

• Metamizole Sodium Monohydrate acts by non‑selectively inhibiting cyclooxygenase enzymes, which lowers prostaglandin synthesis. The reduction of prostaglandins diminishes peripheral nociceptor sensitisation and produces central analgesic effects, while also exerting spasmolytic activity on smooth muscle, contributing to its antipyretic action.

Novalgin Tropfen may cause a range of adverse reactions.

Common Side Effects

• Nausea: mild to moderate upset stomach.
• Dizziness: transient light‑headedness.
• Headache: occasional mild headache.
• Hypotension: occasional drop in blood pressure.
• Skin rash: mild erythematous reactions.
• Vomiting: occasional episodes.

Serious or Rare Side Effects

• Agranulocytosis: severe reduction in white blood cells.
• Anaphylaxis: life‑threatening allergic reaction.
• Stevens‑Johnson syndrome: severe skin and mucous membrane disorder.
• Hepatic dysfunction: elevated liver enzymes.
• Blood dyscrasias: abnormal blood cell counts.
• Severe cutaneous adverse reactions: toxic epidermal necrolysis.

Before prescribing Novalgin Tropfen, consider the following safety measures.

• Monitor blood counts: regular CBC to detect agranulocytosis.
• Avoid in known hypersensitivity: do not use in patients allergic to pyrazolones.
• Use cautiously in renal impairment: adjust therapy based on renal function.
• Do not combine with other NSAIDs: increased risk of gastrointestinal and renal effects.
• Pregnancy and lactation: avoid unless clearly necessary, as safety is unknown.
• Store at ambient temperature: keep in the original container, protect from moisture and light.

Novalgin Tropfen can interact with several drug classes.

Major Interactions (Avoid)

• Concurrent pyrazolones or strong COX inhibitors: heightened risk of agranulocytosis.
• Combination with anticoagulants: increased bleeding tendency.
• Co‑administration with sulfonamides: possible cross‑reactivity leading to severe skin reactions.

Moderate Interactions (Monitor Closely)

• Use with diuretics: may enhance hypotensive effect.
• Combination with antihypertensives: monitor blood pressure closely.
• Co‑use with other analgesics (e.g., paracetamol): may increase total analgesic load and risk of toxicity.