Isozid

Isoniazid, the active ingredient in Isozid, is an antitubercular agent presented as an oral tablet for oral use. It treats active tuberculosis and is used in combination therapy for patients with confirmed Mycobacterium tuberculosis infection. It is indicated for the treatment of newly diagnosed pulmonary and extrapulmonary TB as part of a multi‑drug regimen.

GNH USA supplies Isozid as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with rigorous quality assurance and regulatory compliance. Our distribution network ensures timely delivery across multiple continents.

Isoniazid is used in the management of Mycobacterium tuberculosis infection and related disease states. - Active tuberculosis: Reduces bacterial load and contributes to cure when combined with other antitubercular drugs. - Latent tuberculosis infection: Prevents progression to active disease in individuals with a positive tuberculin test. - TB prophylaxis in high‑risk contacts: Decreases the risk of developing active TB after exposure.

Isoniazid may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects: - Nausea: mild gastrointestinal upset. - Peripheral neuropathy: tingling or numbness in extremities. - Hepatotoxicity: elevated liver enzymes and possible jaundice. - Rash: mild skin irritation or itching.

Serious or Rare Side Effects: - Severe hepatitis: jaundice, dark urine, and liver failure. - Anaphylactic reaction: sudden swelling, difficulty breathing, and shock. - Sideroblastic anemia: impaired red blood cell production leading to fatigue.

Before prescribing isoniazid, clinicians should consider several safety precautions. - Baseline liver function: assess hepatic enzymes prior to initiation. - Alcohol consumption: avoid or limit alcohol to reduce hepatotoxic risk. - Vitamin B6 supplementation: co‑administer pyridoxine to prevent neuropathy. - Pregnancy and lactation: evaluate risk‑benefit as safety data are limited. - Drug interactions: review concomitant medications for potential hepatic or neurotoxic effects. - Store at room temperature: keep in original container, protect from moisture and heat.

Isoniazid interacts with several medicines, requiring careful management.

Major Interactions (Avoid): - Rifampicin: reduces isoniazid plasma levels, compromising efficacy. - Phenytoin: increases hepatic metabolism, lowering isoniazid concentrations. - Carbamazepine: induces enzymes that diminish isoniazid effectiveness.

Moderate Interactions (Monitor Closely): - Acetaminophen: combined hepatotoxic potential; monitor liver function. - Alcohol: additive risk of liver injury; advise abstinence. - Antiretroviral drugs (e.g., efavirenz): may alter isoniazid metabolism; adjust dosing as needed.