Atovaquone/Proguanil 250mg/100mg

Generic For: Malarone

Atovaquone/proguanil 250mg/100mg, sold under the brand name Malarone, is a prescription antimalarial combination tablet. It is used to prevent malaria in travelers to at-risk regions and to treat acute, uncomplicated malaria caused by Plasmodium falciparum. After a licensed provider reviews your information, your order ships from a licensed U.S. pharmacy.

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Buy Atovaquone/Proguanil 250mg/100mg (Malarone) Online

An antimalarial combination tablet for the prevention and treatment of malaria, including chloroquine-resistant Plasmodium falciparum

Atovaquone/Proguanil 250mg/100mg Quick Facts

Drug classAntimalarial combination
TreatsMalaria prevention, acute uncomplicated P. falciparum malaria
FormTablet
Typical dosingFor traveling use. take 1 tablet daily start 1-2 days before trip and continue until 7 days after arriving back home.
Prescription requiredYes — prescription only

What Is Atovaquone/Proguanil 250mg/100mg?

Atovaquone/proguanil is a fixed-dose combination tablet containing two antimalarial medicines that work together to stop the malaria parasite from multiplying. It is FDA-approved to prevent malaria, including in areas where chloroquine-resistant Plasmodium falciparum is present, and to treat acute, uncomplicated P. falciparum malaria. Travelers typically start taking it shortly before entering a malaria-risk area and continue for a week after leaving. It is taken by mouth once daily with food or a milky drink to improve absorption.

What Does Atovaquone/Proguanil 250mg/100mg Treat?

Prevention of Plasmodium falciparum malaria
Prevention of malaria in areas with chloroquine-resistant P. falciparum
Treatment of acute, uncomplicated P. falciparum malaria
Malaria prophylaxis for travelers to endemic regions

Atovaquone/Proguanil 250mg/100mg Dosage

Prophylaxis: 1 tablet (250mg/100mg) by mouth once daily with food; start 1–2 days before travel, continue daily during travel and for 7 days after leaving the malaria area.
Treatment: 4 tablets (1,000mg/400mg) by mouth once daily with food for 3 consecutive days.

Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.

Atovaquone/Proguanil 250mg/100mg Side Effects

Common side effects

  • Headache
  • Nausea
  • Vomiting
  • Abdominal pain
  • Diarrhea
  • Dizziness
  • Mouth ulcers
  • Abnormal dreams

Serious side effects

Stop taking this medication and seek medical attention right away if you experience:

  • Severe allergic reaction (anaphylaxis, angioedema)
  • Severe skin reactions (Stevens-Johnson syndrome, erythema multiforme)
  • Hepatitis or elevated liver enzymes
  • Severe or persistent vomiting or diarrhea (may reduce absorption)
  • Signs of worsening or recurrent malaria (fever, chills)

Warnings & Interactions

Do not use for prophylaxis in patients with severe renal impairment (CrCl <30 mL/min)
Contraindicated with known hypersensitivity to atovaquone or proguanil
Not for treatment of severe or complicated malaria
Rifampin and rifabutin significantly reduce atovaquone levels; avoid coadministration
Tetracycline and metoclopramide may reduce atovaquone concentrations
Redose if vomiting occurs within 1 hour of taking a dose
May increase INR in patients taking warfarin; monitor closely

Tell your prescriber about all medications, supplements, and health conditions before starting atovaquone/proguanil 250mg/100mg.

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Frequently Asked Questions

What is atovaquone/proguanil used for?

Atovaquone/proguanil (Malarone) is used to prevent malaria in travelers visiting at-risk regions and to treat acute, uncomplicated malaria caused by Plasmodium falciparum. It is effective in areas where chloroquine-resistant malaria occurs.

Do I need a prescription for atovaquone/proguanil?

Yes, atovaquone/proguanil requires a prescription in the United States. A licensed healthcare provider must review your health information and travel plans before it can be dispensed.

How does ordering and shipping work?

After you complete a brief health questionnaire, a licensed provider reviews your information to determine whether this medication is appropriate. If approved, your prescription is filled and shipped from a licensed U.S. pharmacy.

How do I take atovaquone/proguanil for malaria prevention?

For prevention, adults take one tablet daily with food or a milky drink, starting 1–2 days before entering a malaria-risk area. Continue daily during your stay and for 7 days after leaving the area.

Is atovaquone/proguanil the same as Malarone?

Yes, Malarone is the brand name for atovaquone/proguanil. Both contain the same active ingredients at the same strength and are FDA-approved for malaria prevention and treatment.

What should I do if I vomit after taking a dose?

If you vomit within 1 hour of taking a dose, take a repeat dose. If vomiting is severe or persistent, contact your healthcare provider, as absorption of the medication may be reduced.

Can everyone take atovaquone/proguanil?

No. It should not be used for malaria prevention in people with severe kidney impairment, and it is not appropriate for treating severe or complicated malaria. Tell your provider about all medications you take, including rifampin, tetracycline, and warfarin.