Isoniazid tablets are available for purchase at regular pharmacies and hospitals, but you must have a prescription from a medical professional to purchase and use the drug.
Isoniazid tablets are a synthetic antibacterial drug with bactericidal properties, but the drug is only effective against Mycobacterium tuberculosis. The drug is used in combination with other anti-tuberculosis drugs to treat all types of tuberculosis and alone to prevent all types of tuberculosis. Although isoniazid tablets can be purchased in regular large pharmacies and hospitals, the drug is a prescription drug and can only be purchased with a prescription issued by a physician.
The more common adverse reactions caused by the application of isoniazid tablets include unsteady gait, numbness and pins and needles sensation, finger pain, dark-colored urine, nausea and vomiting, and poor appetite.
Isoniazid tablets are contraindicated in people with abnormal liver function, epileptics, psychiatric patients, and those who are allergic to the drug.
If abnormal symptoms of optic neuritis occur during treatment with isoniazid tablets, an eye examination should be performed immediately and regular reviews should be conducted. Individuals who experience abnormal isoniazid toxicity as a result of taking the medication should be treated with high doses of vitamin B6 to counteract the treatment.
Individuals should use isoniazid tablets appropriately under the guidance of a medical professional and should never abuse the drug, and should follow the doctor’s instructions to use the drug in full dosage and duration.