Atovaquone-Proguanil

Presciption Medicine
  • Dual-action malaria prevention and treatment
  • Effective against drug-resistant malaria strains
  • Convenient once-daily dosing
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Product Information

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Medically Verified
Dr. Cosmin Alexandru | Expert Transtoyou

Dr. Cosmin Alexandru

General Medicine Doctor | CUIM: 2791492305
Reviewed on: 25 May, 2025 View Profile

Dr. Cosmin Alexandru has 20+ years in emergency and family medicine, now serving at County Clinic Hospital Sibiu.

Atovaquone-Proguanil is a combination medication used to prevent and treat malaria, a parasitic disease transmitted through the bite of infected mosquitoes. The medicine combines two active substances: Atovaquone, which interferes with the energy production of malaria parasites, and Proguanil, which inhibits their ability to reproduce. Together, they provide a potent dual mechanism that targets the parasite at multiple stages of its lifecycle.

This medication is effective against Plasmodium falciparum, the most dangerous and drug-resistant form of malaria. It is commonly prescribed for travellers visiting regions where malaria is endemic, as well as for short-term treatment in those who become infected.

Atovaquone-Proguanil is usually taken once a day with food or a milky drink to improve absorption. For prevention, it is started one or two days before entering a malaria-risk area and continued for one week after leaving. For treatment, it is taken for three consecutive days.

Compared to older malaria medications, this combination is generally well tolerated and does not require long pre-travel dosing schedules. Side effects are usually mild and may include abdominal pain, nausea, vomiting, headache, or sleep disturbances. It is not suitable for long-term prevention over several months but is ideal for shorter trips and uncomplicated treatment.

General Information

What is [Product name]?

Atovaquone-Proguanil is a combination medication used to prevent and treat malaria, especially in areas with drug-resistant Plasmodium falciparum. 

What is [Product name] used for?

It is used for both the prevention and treatment of malaria in adults and children above a certain weight. 

How does [Product name] work in the body?

Atovaquone interferes with the parasite’s energy production, while Proguanil inhibits reproduction, making it effective at multiple life cycle stages. 

What is the general recommended dosage for [Product name]?

For prevention, it is taken daily starting one to two days before travel. For treatment, it is taken once daily for three days. 

How long does it take to feel the effects of [Product name]?

It begins working soon after the first dose. Full protection requires consistent daily use starting before and continuing after exposure. 

What should I do if I forget a dose?

Take it as soon as you remember. If it’s nearly time for your next dose, skip the missed one. Do not take two doses at once. 

Safety & Side Effects

What are the possible side effects of [Product name]?

Common effects include stomach upset, headache, dizziness, and sleep disturbances. These are generally mild and temporary. 

What are the contraindications of [Product name]?

It should not be used by people with severe kidney problems or those allergic to either ingredient. 

Can I combine [Product name] with other medications?

Yes, but inform your doctor. Some antibiotics and antiretrovirals may interact with it. 

Can I use this if I am pregnant or breastfeeding?

It may be used if clearly needed. Discuss with your healthcare provider to assess the risks and benefits. 

Is it safe to drink alcohol while using [Product name]?

Alcohol does not interact directly, but it may worsen nausea or gastrointestinal discomfort in some people. 

Usage & Administration

How do I administer [Product name]?

Take with food or a milky drink to improve absorption and reduce stomach upset. 

How should I store [Product name] properly?

Store at room temperature in the original packaging, away from moisture and heat. 

Should I take [Product name] with food?

Yes, taking it with food improves absorption and reduces the chance of nausea. 

Can I crush or dissolve the tablet in water?

The tablet should be swallowed whole. Crushing is not recommended unless advised by a healthcare provider. 

Ordering & Delivery

How can I order [Product name] online?

To get [Product name], fill out a medical form or book a video consult with a doctor via Transtoyou. After approval, your prescription is sent to the pharmacy for fast delivery.

Do I need a prescription for [Product name]?

[Product name] requires a valid prescription, which is issued after the doctor reviewed your answered in the medical questionnaire or via a video consultation with the doctor.

How fast is [Product name] delivered?

After approval by a doctor from Transtoyou, the prescription of [Product name] is forwarded to an affiliated pharmacy and typically shipped within 1–2 working days.

Can I return [Product name] if I change my mind?

For safety and legal reasons prescription medication (RX) and in this case [Product name] is non-returnable once shipped. 

Product Documentation

All Variants

Select a variant to see specific documentation. Leaflets are provided for information purposes only. The official leaflet in the language of the country of delivery is supplied with the order.

EN

Atovaquone 250-100 mg

119.75 KB Feb 2026 Multi-variant
Informational leaflet with dosage instructions and safety information.
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