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Isoniazid is an antibacterial and anti-TB combination.
You can buy Isoniazid online at AWC Canadian Pharmacy:

Isoniazid 300 mg
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60 pills
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per item
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90 pills
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  Product Description   Safety Information   Customer Reviews   Packaging   Video
Drug Uses

Isoniazid prevents tuberculous bacteria from multiplying in the body. Isoniazid is used to treat and to prevent tuberculosis (TB).

How Taken

Use Isoniazid as directed by your doctor.
  • Take Isoniazid by mouth with or without food.
Ask your health care provider any questions you may have about how to use Isoniazid.

Drug Class and Mechanism

Isoniazid is an antibacterial and anti-TB combination. It works by killing TB organisms.

Missed Dose

If you miss a dose of Isoniazid and are using it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.


Store Isoniazid between 68 and 77 degrees F (20 and 25 degrees C). Brief storage at temperatures between 59 and 86 degrees F (15 and 30 degrees C) is permitted. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Isoniazid out of the reach of children and away from pets.

Possible Side Effects

Check with your doctor if any of these most common side effects persist or become bothersome:
  • Mild stomach upset.
Seek medical attention right away if any of these severe side effects occur:

  • Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bloody stools; changes in vision; chills or fever; dark urine; general feeling of discomfort; joint pain or swelling; loss of appetite; memory problems; mental or mood changes; nausea; seizures; severe diarrhea; stomach pain; tingling or numbness in the hands or feet; unusual bruising or bleeding; unusual tiredness or weakness; vomiting; yellowing of the skin or eyes.

More Information

If you have any questions about Isoniazid, please talk with your doctor, pharmacist, or other health care provider.
Isoniazid is to be used only by the patient for whom it is prescribed. Do not share it with other people.

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