Product Overview
Isokin Tablet is a fixed-dose combination containing Isoniazid (INH) + Vitamin B6 (Pyridoxine), primarily used in the prevention and treatment of tuberculosis (TB). Isoniazid is a first-line antitubercular agent that acts directly against Mycobacterium tuberculosis, while Pyridoxine is included to reduce the risk of peripheral neuropathy, a known side effect of Isoniazid therapy.
This combination is widely used in both active TB treatment regimens (as part of multi-drug therapy) and in latent TB prophylaxis, ensuring both efficacy and improved neurological safety.
Mechanism Insights (How It Works)
- Prodrug Activation
Isoniazid is activated by the bacterial enzyme catalase-peroxidase (KatG) within M. tuberculosis, converting it into its active form. - Mycolic Acid Inhibition
The active metabolite inhibits InhA enzyme, blocking synthesis of mycolic acids, which are essential components of the mycobacterial cell wall. - Cell Wall Disruption
Without mycolic acids, the bacterial cell wall loses integrity, leading to impaired growth and eventual bacterial death. - Neuroprotection via Pyridoxine
Isoniazid interferes with vitamin B6 metabolism; supplemental Pyridoxine prevents depletion, reducing the risk of peripheral neuropathy, tingling, or nerve-related side effects.
Administration Guidelines
- Take exactly as prescribed by the physician
- Usually administered once daily on an empty stomach (or as directed)
- Do not skip doses to prevent resistance development
- Complete full course even if symptoms improve early
- Pyridoxine component helps reduce long-term nerve-related side effects
Clinical Considerations
- Essential component of first-line anti-TB therapy (HRZE regimen)
- Also used in latent TB infection prophylaxis
- Requires strict adherence to prevent drug resistance
- Liver function monitoring may be required during prolonged therapy
- Pyridoxine supplementation is especially important in high-risk patients (e.g., malnutrition, diabetes, alcoholism, pregnancy)
Precautions:
Usage
General Usage Information
Isokin Tablet is used as part of an anti-tuberculosis (TB) treatment regimen to help treat and prevent the spread of tuberculosis infection. Isoniazid works by inhibiting the growth of TB-causing bacteria, while Vitamin B6 (Pyridoxine) helps reduce the risk of nerve-related side effects associated with isoniazid therapy.
The effectiveness of treatment depends on strict adherence to the prescribed regimen, correct timing of doses, and completion of the full course as directed by a healthcare professional.
Key Usage Points
✔ Take the medicine exactly as prescribed by your healthcare provider
✔ Do not skip doses, as consistent levels are important for TB treatment success
✔ Can be taken with or without food (food may help reduce stomach upset)
✔ Complete the full course even if symptoms improve early
✔ Vitamin B6 helps prevent tingling, numbness, or nerve-related side effects
✔ Avoid alcohol during treatment, as it may increase the risk of liver side effects
✔ Regular medical monitoring may be required during therapy
Uses
Isokin Tablet is commonly used for:
- Treatment of active tuberculosis (as part of combination therapy)
- Prevention of tuberculosis in high-risk individuals (latent TB treatment)
- Reducing risk of nerve damage caused by isoniazid through Vitamin B6 supplementation
How to Use
- Take orally with water as directed by your doctor
- Swallow the tablet whole; do not crush or chew unless advised
- Take at the same time each day for best results
- Dosage and duration depend on age, weight, medical condition, and treatment plan
- Follow the prescribed schedule strictly and attend all follow-up appointments
Side Effects
FAQs
What is Isokin Tablet used for?
Isokin Tablet is used in the treatment and prevention of tuberculosis (TB). It contains Isoniazid, which helps kill TB-causing bacteria, and Vitamin B6 (Pyridoxine), which helps prevent nerve-related side effects caused by Isoniazid.
How does Isokin Tablet work in the body?
Isoniazid works by stopping the growth of tuberculosis bacteria, helping the body fight the infection. Vitamin B6 supports nerve health and reduces the risk of tingling or numbness during treatment.
Why is Vitamin B6 added to Isokin Tablet?
Vitamin B6 is added to help prevent peripheral neuropathy, a side effect of Isoniazid that may cause numbness, tingling, or nerve pain, especially in long-term use.
How should I take Isokin Tablet?
Take the tablet exactly as prescribed by your doctor, usually on an empty stomach for better absorption. Swallow it with water and try to take it at the same time every day.
Interactions
General Interaction Overview
Isokin Tablet (Isoniazid + Vitamin B6 (Pyridoxine)) may interact with certain medications that affect liver function, nerve health, or the metabolism of isoniazid. These interactions can change how the medicine works or increase the risk of side effects, so it is important to inform your healthcare provider about all medicines, supplements, or herbal products being used.
Commonly Reported Interactions
- Antiepileptic medicines such as phenytoin or carbamazepine may have increased blood levels, raising side effect risk
- Rifampicin and other anti-tuberculosis medicines may increase the risk of liver-related side effects
- Alcohol consumption may significantly increase the risk of liver toxicity
- Antacids containing aluminum may reduce absorption of isoniazid if taken together
- Medicines affecting the liver, including certain antifungals or antibiotics, may increase the chance of liver problems
- Pyridoxine (Vitamin B6) may reduce certain nerve-related side effects associated with isoniazid treatment
Taking the medicine on an empty stomach is generally recommended for better absorption, unless advised otherwise by your doctor.
| Manufacturer | : | Pfizer Ltd |
| Equivalent Brand | : | Isokin |
| Generic Search | : | Isoniazid + Vitamin B6 (Pyridoxine) |
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