GNH USA

Europe — EMA

Malarone

GNH USA supplies Malarone (Atovaquone/proguanil), a antimalarial for prevention and treatment of Plasmodium falciparum malaria. Request a quote for supply.

Proguanil Hydrochloride, Atovaquone

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What is Proguanil Hydrochloride, Atovaquone?

Atovaquone/proguanil, the active ingredient in Malarone, is an antimalarial presented as a tablet for oral use. It prevents and treats Plasmodium falciparum malaria in travelers, expatriates, and residents of endemic regions, covering both prophylaxis and acute uncomplicated infection. It is approved in the European Union and is commonly prescribed for short‑term travel regimens as well as for treatment courses lasting three days.

GNH USA supplies Malarone as a licensed, GDP‑compliant supplier serving hospitals, pharmacies and clinics worldwide, with full regulatory documentation.

What is Proguanil Hydrochloride, Atovaquone used for?

Malarone is an antiprotozoal medication used in the prevention and treatment of malaria.

Pre‑exposure prophylaxis: prevents Plasmodium falciparum malaria in travelers to endemic areas. Post‑exposure prophylaxis: administered after potential mosquito exposure to reduce risk of infection. Acute uncomplicated malaria: treats confirmed Plasmodium falciparum infection in patients without severe disease.

What are the side effects of Proguanil Hydrochloride, Atovaquone?

Malarone may cause a range of adverse reactions, most of which are mild and reversible.

Common Side Effects: - Nausea - Abdominal pain - Headache - Vomiting

Serious or Rare Side Effects: - Severe skin reactions such as Stevens‑Johnson syndrome - Hepatic injury or elevated liver enzymes - Hemolytic anemia in patients with G6PD deficiency - Severe neutropenia or other blood dyscrasias

What precautions apply to Proguanil Hydrochloride, Atovaquone?

Before prescribing Malarone, clinicians should consider several precautionary measures to ensure safe use.

Pregnancy: Category B; use only when benefit outweighs potential risk. Breastfeeding: Caution advised; small amounts may be excreted in milk. Renal or hepatic impairment: Dose adjustment may be required; monitor function. G6PD deficiency: Risk of hemolysis; avoid or use with caution. Age considerations: Not recommended for children under 5 kg without specialist guidance. Store at ambient temperature below 25°C: keep in original packaging, protect from moisture.

What does Proguanil Hydrochloride, Atovaquone interact with?

Malarone can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid): - Rifampin, carbamazepine, phenytoin, or other strong CYP3A4 inducers: may markedly reduce atovaquone levels. - Protease inhibitors (e.g., ritonavir): can increase atovaquone concentrations and risk of toxicity. - Warfarin: may potentiate anticoagulant effect, requiring INR monitoring. - Antiretroviral NNRTIs (e.g., efavirenz): may lower proguanil activation.

Moderate Interactions (Monitor Closely): - Antacids or sucralfate: can decrease absorption of atovaquone; separate dosing by at least 2 hours. - Statins (e.g., simvastatin): may increase risk of myopathy when combined. - Oral contraceptives: possible reduction in efficacy; consider additional contraceptive measures. - HIV protease inhibitors (e.g., lopinavir/ritonavir): may increase plasma levels; monitor for adverse effects.

Frequently asked questions

What is Malarone used for?+
Malarone is indicated for the prevention of malaria caused by Plasmodium falciparum in travelers and for the treatment of acute uncomplicated malaria due to the same parasite. It is used both as a prophylactic regimen taken before, during, and after exposure, and as a short‑course therapy to clear infection in patients without severe disease.
How does Atovaquone/proguanil work?+
The combination works by targeting two essential parasite pathways. Atovaquone blocks the mitochondrial electron transport chain, stopping ATP production, while proguanil is converted to cycloguanil, which inhibits dihydrofolate reductase, disrupting folate metabolism and DNA synthesis. Together they produce a synergistic effect that rapidly kills blood‑stage parasites.
What determines the dose of Malarone?+
The dose of Malarone is set by the prescribing clinician based on the patient’s weight, age, indication (prophylaxis versus treatment), and renal or hepatic function. Standard adult regimens are defined in the product labeling, but the exact schedule must be individualized by a qualified health‑care professional.
Is Malarone safe in pregnancy and breastfeeding?+
Malarone is classified as pregnancy category B, indicating that animal studies have not shown risk but there are no adequate controlled studies in pregnant women. It may be used when the potential benefit justifies the potential risk. Small amounts can be excreted in breast milk, so breastfeeding mothers should discuss risks with their physician.
How do I order Malarone from GNH USA?+
To order Malarone, 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. The sales team then provides pricing, availability, shipping details and any required import documentation.
How does Malarone compare with other antimalarial drugs?+
Compared with older agents such as chloroquine, Malarone offers a broader spectrum against chloroquine‑resistant Plasmodium falciparum and requires a shorter treatment course. Its dual‑mechanism reduces the chance of resistance development, but it may have more gastrointestinal side effects and requires careful consideration of drug interactions.
What are the recommended storage conditions for Malarone?+
Malarone tablets should be stored at ambient temperature below 25 °C, in the original blister pack, protected from moisture and direct sunlight. Do not store in areas of high humidity or extreme heat to maintain product stability.
How is Malarone administered?+
Malarone is taken orally with water, with or without food, as directed by the prescriber. For prophylaxis, tablets are usually started 1–2 days before entering a malaria‑risk area, continued daily throughout exposure, and taken for 7 days after leaving the area. For treatment, the full prescribed course is completed even if symptoms improve.
What are the most serious risks associated with Malarone?+
Serious risks include severe skin reactions such as Stevens‑Johnson syndrome, hepatic injury, hemolytic anemia in patients with glucose‑6‑phosphate dehydrogenase deficiency, and significant blood dyscrasias like neutropenia. Patients should be instructed to seek immediate medical attention if they develop rash, jaundice, dark urine, or unexplained fever.
Who should not use Malarone?+
Malarone should be avoided in individuals with known hypersensitivity to atovaquone, proguanil or any tablet components. It is contraindicated in patients with severe renal or hepatic impairment unless dose adjustment is made, and caution is advised for those with G6PD deficiency, pregnant women unless benefits outweigh risks, and young children under 5 kg without specialist guidance.
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
Proguanil Hydrochloride, Atovaquone
Route
Oral Use
Manufacturer
Glaxosmithkline Single Member A.E.B.E.
Origin
EU

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