GNH USA

Europe — EMA

Nitisinone Dipharma

GNH USA supplies Nitisinone Dipharma (Nitisinone), a p-Hydroxyphenylpyruvate dioxygenase inhibitor for hereditary tyrosinemia type I treatment.

Nitisinone

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What is Nitisinone?

Nitisinone, the active ingredient in Nitisinone Dipharma, is a p-Hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor presented as a tablet for oral use. It is indicated for the treatment of hereditary tyrosinemia type I in patients who require metabolic control.

GNH USA supplies Nitisinone Dipharma as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, transplant centres, pharmacies and clinics worldwide.

What is Nitisinone used for?

Nitisinone acts on the tyrosine degradation pathway to treat hereditary metabolic disorders.

Hereditary tyrosinemia type I: reduces accumulation of toxic metabolites and helps prevent liver failure and other disease complications.

What are the side effects of Nitisinone?

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

Common Side Effects: - Headache: mild to moderate intensity. - Nausea: occasional, may improve with food. - Abdominal pain: intermittent discomfort. - Fatigue: general tiredness reported.

Serious or Rare Side Effects: - Hepatic dysfunction: elevated transaminases or liver injury. - Severe allergic reactions: rash, swelling, or anaphylaxis. - Peripheral neuropathy: tingling or numbness in extremities. - Seizures: rare neurologic events. - Elevated serum bilirubin: may indicate liver stress.

What precautions apply to Nitisinone?

Before initiating therapy, several safety considerations should be observed. - Dose adjustment in hepatic impairment: reduce dose or monitor closely. - Monitor liver function tests: check ALT, AST, and bilirubin regularly. - Avoid in patients with known hypersensitivity to nitisinone or excipients. - Use caution during pregnancy: potential risk to the fetus is unknown. - Store at below 25°C: keep in the original pack, protect from moisture.

What does Nitisinone interact with?

Nitisinone can interact with other medicines, requiring attention to co‑administered drugs.

Major Interactions (Avoid): - Concurrent use with other HPPD inhibitors (e.g., teriflunomide): may increase toxicity. - Strong CYP3A4 inducers (e.g., rifampicin): may reduce nitisinone exposure.

Moderate Interactions (Monitor Closely): - Warfarin: monitor INR for altered anticoagulation. - Phenobarbital: observe liver enzymes for additive effects. - Vitamin K antagonists: check coagulation parameters regularly.

Frequently asked questions

What is Nitisinone Dipharma used for?+
Nitisinone Dipharma is used to treat hereditary tyrosinemia type I, a rare genetic disorder that disrupts the normal breakdown of the amino acid tyrosine. By reducing the buildup of toxic metabolites, it helps protect liver function and prevents disease‑related complications.
How does Nitisinone work in the body?+
Nitisinone blocks the enzyme p‑hydroxyphenylpyruvate dioxygenase (HPPD) in the tyrosine catabolic pathway. This inhibition stops the formation of downstream toxic compounds such as maleylacetoacetate and fumarylacetoacetate, thereby lowering the risk of liver and kidney damage associated with the disorder.
What is the usual dose of Nitisinone Dipharma?+
The specific dose of Nitisinone Dipharma is determined by the prescribing physician based on the patient’s age, weight, disease severity, and laboratory monitoring results. Dosage adjustments may be required during treatment, and the prescriber will provide individualized instructions.
Is Nitisinone safe during pregnancy or breastfeeding?+
Safety data for Nitisinone in pregnancy and lactation are limited. The potential risk to the fetus or infant is not well established, so the drug should only be used if the potential benefit justifies the possible risk. Women of child‑bearing potential should discuss contraception and treatment options with their healthcare provider.
How do I order Nitisinone Dipharma from GNH USA?+
To place an order, submit an enquiry on the product page at gnh-usa.com, specifying the required quantity. GNH USA works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements), and necessary import documentation.
How does Nitisinone compare with other treatments for hereditary tyrosinemia type I?+
Nitisinone is the primary disease‑modifying therapy for hereditary tyrosinemia type I, directly targeting the metabolic defect. Alternative approaches, such as liver transplantation, address end‑stage organ damage but do not correct the underlying metabolic pathway. Nitisinone therefore offers a less invasive, long‑term management option when initiated early.
What are the recommended storage conditions for Nitisinone Dipharma?+
Nitisinone Dipharma should be stored at temperatures below 25 °C, in its original packaging, and protected from moisture and direct sunlight. Keeping the product in a dry, cool environment helps maintain its stability and potency throughout its shelf life.
How is Nitisinone Dipharma administered?+
Nitisinone Dipharma is taken orally, usually with or without food as directed by the prescriber. The tablet should be swallowed whole with a glass of water and not crushed or chewed unless specifically instructed by a healthcare professional.
What are the most serious risks associated with Nitisinone therapy?+
Serious risks include hepatic dysfunction, which may manifest as elevated liver enzymes or liver injury, and rare severe allergic reactions such as anaphylaxis. Patients should be monitored regularly for signs of liver toxicity and any hypersensitivity symptoms, and treatment should be discontinued if serious adverse events occur.
Who should not use Nitisinone Dipharma?+
Nitisinone Dipharma should be avoided in individuals with known hypersensitivity to nitisinone or any of its excipients. Caution is also advised for patients with severe hepatic impairment, and the drug should only be used in pregnancy or lactation when the potential benefits outweigh the risks.
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.
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Product details

Drug
Nitisinone
Route
Oral Use
Manufacturer
Dipharma Arzneimittel Gmbh
Origin
EU

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