GNH USA

Europe — EMA

Isoniazide Costero

GNH USA supplies Isoniazide Costero (Isoniazid), a antitubercular for active tuberculosis treatment and latent infection prophylaxis.

Isoniazid

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What is Isoniazid?

Isoniazid, the active ingredient in Isoniazide Costero, is an antitubercular presented as an oral tablet for oral use. It is employed in the treatment of active tuberculosis and in prophylaxis of latent Mycobacterium tuberculosis infection in adults and children through standard multidrug regimens under medical supervision.

GNH USA supplies Isoniazide Costero as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides regulatory documentation for import and distribution in multiple regions.

What is Isoniazid used for?

Isoniazide Costero (isoniazid) is used in the antitubercular therapeutic pathway to manage Mycobacterium tuberculosis infection. - Active tuberculosis: contributes to bactericidal activity as part of combination therapy to achieve cure. - Latent tuberculosis infection: provides prophylaxis to prevent progression to active disease. - Tuberculosis exposure prophylaxis: reduces risk of developing active TB in individuals with recent exposure.

What are the side effects of Isoniazid?

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

Common Side Effects: - Peripheral neuropathy: tingling or numbness, especially in extremities. - Hepatotoxicity: elevated liver enzymes and possible jaundice. - Nausea and vomiting: gastrointestinal discomfort.

Serious or Rare Side Effects: - Severe hepatitis: jaundice, fatigue, dark urine requiring immediate medical attention. - Stevens‑Johnson syndrome: severe skin blistering and mucosal involvement. - Seizures: rare neurologic events, particularly in overdose.

What precautions apply to Isoniazid?

Before initiating therapy, several safety considerations should be observed. - Liver monitoring: check baseline and periodic liver function tests during therapy. - Vitamin B6 supplementation: co‑administer pyridoxine to reduce risk of neuropathy. - Alcohol avoidance: limit alcohol intake to decrease hepatic stress. - Renal impairment: adjust dose in patients with severe renal dysfunction. - Pregnancy and lactation: evaluate risk‑benefit before use. - Store at room temperature: keep in original container, protect from moisture and direct sunlight.

What does Isoniazid interact with?

Isoniazide Costero can interact with several medicines, requiring attention to avoid reduced efficacy or increased toxicity.

Major Interactions (Avoid): - Rifampicin: induces hepatic enzymes, reducing isoniazid plasma levels and efficacy. - Anticonvulsants (phenytoin, carbamazepine): increase hepatotoxic risk and lower drug concentrations. - Alcohol: synergistic hepatotoxicity leading to severe liver injury.

Moderate Interactions (Monitor Closely): - Macrolide antibiotics (e.g., erythromycin): may raise isoniazid levels, requiring monitoring. - Sulfonamide drugs: combined use can enhance hepatic toxicity. - Warfarin: isoniazid may potentiate anticoagulant effect, necessitating INR monitoring.

Frequently asked questions

What is Isoniazide Costero used for?+
Isoniazide Costero contains isoniazid, an antitubercular agent used to treat active tuberculosis as part of a multidrug regimen and to prevent disease in individuals with latent Mycobacterium tuberculosis infection. It is prescribed by qualified healthcare professionals for these specific indications.
How does isoniazid work?+
Isoniazid is a pro‑drug that is activated inside Mycobacterium tuberculosis by the bacterial enzyme KatG. The activated form blocks the synthesis of mycolic acids, which are essential components of the bacterial cell wall, leading to rapid bactericidal killing of the organism.
What is the usual dose of isoniazid?+
The dosage of isoniazid is individualized by the prescribing clinician based on factors such as patient age, weight, renal function, and whether the drug is being used for active disease or prophylaxis. Standard adult regimens typically range from 5 mg/kg to 10 mg/kg per day, but the exact amount must be set by a qualified prescriber.
Is isoniazid safe in pregnancy or breastfeeding?+
Safety data for isoniazid in pregnancy and lactation are limited. The drug may be used when the expected benefit outweighs potential risks, and pyridoxine supplementation is recommended to reduce the risk of neuropathy. Breastfeeding mothers should consult their healthcare provider, as isoniazid does pass into breast milk in small amounts.
How do I order Isoniazide Costero from GNH USA?+
To place an order, submit an enquiry on the product page at gnh-usa.com, specifying the required quantity. GNH USA supplies hospitals, pharmacies and procurement teams worldwide, and will request verification of trade or institutional credentials. After confirmation, the team provides pricing, availability, shipping details and any necessary import documentation.
How does isoniazid compare with the main alternative drug or class?+
The primary alternative in first‑line tuberculosis therapy is rifampicin, which has a different mechanism— inhibition of bacterial RNA synthesis. Isoniazid is bactericidal against actively replicating bacilli, while rifampicin is also bactericidal but works on a broader range of bacterial species. Both are used together to enhance efficacy and prevent resistance.
How should Isoniazide Costero be stored and handled?+
Store the product at room temperature, preferably below 25 °C, in its original packaging. Protect it from moisture, direct sunlight and excessive heat. Keep the container tightly closed and out of reach of children. No special refrigeration is required for this oral tablet formulation.
How is Isoniazide Costero administered?+
Isoniazide Costero is taken orally, usually once daily, with or without food as directed by the prescriber. The tablet should be swallowed whole with a full glass of water. Patients are advised to follow the exact schedule provided by their healthcare professional to maintain consistent drug levels.
What are the most serious risks to watch for while taking isoniazid?+
The most serious adverse events include severe hepatitis, which may present with jaundice, fatigue, or dark urine, and neurological complications such as peripheral neuropathy or, rarely, seizures. Any signs of liver dysfunction or unusual neurological symptoms should prompt immediate medical evaluation.
Who should not use Isoniazide Costero?+
Isoniazide Costero should be avoided in individuals with known hypersensitivity to isoniazid or any of its excipients. Caution is also required for patients with pre‑existing liver disease, severe renal impairment, or those taking medications that strongly interact with isoniazid without appropriate monitoring.
Information provided on this page is for educational use by procurement and clinical professionals. Always consult a licensed healthcare provider for medical advice and prescribing decisions. GNH USA supplies this product subject to applicable regulatory and licensing requirements.

Product details

Drug
Isoniazid
Route
Oral Use
Manufacturer
Costero B.V
Origin
EU

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