Milgamma N (Thiamine Hydrochloride, Cyanocobalamin, Pyridoxine Hydrochloride, Lidocaine Hydrochloride)

Milgamma N, a vitamin B complex combined with a local anesthetic, is indicated for conditions related to vitamin B deficiency and neuropathic pain.

• Vitamin B complex deficiency: restores essential B‑vitamin levels and supports metabolic functions.
• Peripheral neuropathy: improves nerve function and reduces sensory symptoms.
• Neuralgic pain: provides analgesia through local anesthetic effect and supports nerve health.
• Local analgesia for intramuscular injection: reduces pain at the injection site.

• Thiamine, pyridoxine and cyanocobalamin act as essential co‑enzymes in carbohydrate metabolism and neuronal biosynthesis, facilitating ATP production and myelin formation. Lidocaine reversibly blocks voltage‑gated sodium channels on peripheral nerves, inhibiting impulse propagation and producing local anesthesia. Together, the combination restores metabolic support to nerves while dampening pain transmission at the injection site.

Adverse reactions to Milgamma N may vary in frequency and severity.

Common Side Effects

• Injection site pain: mild discomfort at the site of administration.
• Nausea: transient feeling of sickness.
• Headache: mild to moderate headache.
• Dizziness: temporary light‑headedness.
• Transient hypotension: brief drop in blood pressure.
• Local irritation: mild redness or swelling.

Serious or Rare Side Effects

• Anaphylaxis: severe allergic reaction requiring immediate medical attention.
• Severe hypotension: marked drop in blood pressure that may cause syncope.
• Cardiac arrhythmia: irregular heart rhythm associated with systemic lidocaine toxicity.
• Stevens‑Johnson syndrome: rare severe skin reaction.
• Seizures: uncommon but possible with high systemic lidocaine levels.
• Persistent neurologic deficits: rare prolonged nerve impairment.

Before using Milgamma N, consider the following precautions.

• Pregnancy: consult a physician before administration.
• Renal impairment: monitor renal function and adjust use if needed.
• Hepatic impairment: use with caution in patients with liver disease.
• Known hypersensitivity: avoid if allergic to any component.
• Concomitant CNS depressants: monitor for enhanced sedation.
• Store at ambient temperature: keep in original container, protect from light and moisture.

Milgamma N may interact with other medicines; review the following categories.

Major Interactions (Avoid)

• Other local anesthetics: risk of cumulative systemic toxicity.
• MAO inhibitors: may potentiate hypotensive effects.
• Cytotoxic chemotherapy agents: potential increase in neurotoxicity.

Moderate Interactions (Monitor Closely)

• Anticoagulants: monitor for increased bleeding at injection site.
• Diuretics: may affect electrolyte balance, observe serum levels.
• Alcohol: can enhance sedation and hypotension.