Here is a complete overview of Carbamazepine Tablet 400 mg (brand-free):
💊 Carbamazepine Tablet 400 mg
✅ DESCRIPTION
Carbamazepine is an anticonvulsant and mood-stabilizing medicine commonly prescribed for epilepsy, bipolar disorder, and neuropathic pain. The 400 mg strength is typically used in maintenance therapy or higher-dose regimens for adults and some adolescents.
🧪 FORMULATION
- Active Ingredient: Carbamazepine 400 mg
- Dosage Form: Oral tablet (may be immediate-release or controlled-release, depending on formulation)
- Route: Oral
- Color/Shape: Varies depending on manufacturer; typically scored for dose splitting
🌿 NATURE
- Drug Class: Anticonvulsant / Mood stabilizer
- Mechanism of Action:
Inhibits voltage-gated sodium channels → reduces excessive neuronal firing → stabilizes overactive nerves in epilepsy and pain syndromes
💡 USES
- Seizure Disorders:
- Partial seizures (focal onset)
- Generalized tonic-clonic seizures
- Neuropathic Pain:
- Trigeminal neuralgia
- Peripheral nerve pain
- Psychiatric Use:
- Acute mania and maintenance in bipolar disorder
- Behavioral aggression (in select psychiatric conditions)
🌟 ADVANTAGES
- Effective across multiple conditions: neurology and psychiatry
- Higher-dose tablet allows reduced pill burden
- Often available in extended-release for smoother blood levels and fewer side effects
⚠️ PRECAUTIONS
Common Side Effects:
- Dizziness, fatigue
- Nausea, vomiting
- Blurred vision, double vision
- Unsteady gait
Serious Adverse Reactions:
- Skin reactions (SJS/TEN) especially in Asian populations (screen for HLA-B*1502)
- Bone marrow suppression – monitor for signs of anemia or infection
- Hepatotoxicity
- Hyponatremia due to SIADH
- Strong enzyme inducer – affects levels of other drugs (e.g., warfarin, contraceptives)
❌ CONTRAINDICATIONS
- History of hypersensitivity to carbamazepine or tricyclic compounds
- Bone marrow depression
- Use within 14 days of monoamine oxidase inhibitors (MAOIs)
🧪 MONITORING PARAMETERS
- CBC with differential
- Liver function tests (LFTs)
- Serum sodium (especially in elderly)
- Plasma carbamazepine levels (therapeutic range: 4–12 mcg/mL)
👶 USE IN SPECIAL POPULATIONS
- Pregnancy: Caution advised – associated with neural tube defects
- Breastfeeding: Present in breast milk – monitor infant
- Elderly: Start low and monitor for hyponatremia
- Pediatrics: Dose adjusted by weight and age
🧊 STORAGE
- Store at 15°C to 30°C
- Protect from moisture and light
- Keep tightly closed
- Do not use after expiry date