What is Mepron: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Mepron overview

BRAND NAMES:

  • Mepron, Mepron

Generic Names:

  • Atovaquone

Uses:

  • Treats and prevents pneumonia.

Therapeutic Classes:

  • Antiprotozoal

Forms:

  • Liquid, Tablet

How it’s taken:

  • By mouth

What is Mepron used for?

Atovaquone is an antibiotic that is used to treat and prevent pneumocystis pneumonia. It is also used to treat babesiosis, malaria, and other conditions as prescribed by your doctor. Atovaquone works by stopping the growth of certain types of protozoa that can cause pneumonia. It is safe to use in children and adults and is available as a liquid.

What form(s) does Mepron come in

  • Liquid

  • Tablet

What are common Mepron doses?

  • Bottle 210ML of 750MG/5ML

  • Box 5ML of 750MG/5ML

Common Mepron prescriptions

  • Mepron
    210ml of 750mg/5ml bottle

  • Mepron
    5ml of 750mg/5ml box

How to take Mepron

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • This medicine should be taken with food to help your body absorb it. Tell your doctor if you are not able to do this.

  • Oral liquid: Foil pouch: Put the contents directly in your mouth or use a dosing spoon or cup. Use 1 pouch for a 5-milliliter (mL) dose. Use 2 pouches for a 10-mL dose.Bottle: Shake the bottle gently before each use.Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze.

  • Your doctor will tell you how much medicine to use. Do not use more than directed.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

  • This medicine should be taken with food to help your body absorb it. Tell your doctor if you are not able to do this.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze.

  • Oral liquid: Foil pouch: Put the contents directly in your mouth or use a dosing spoon or cup. Use 1 pouch for a 5-milliliter (mL) dose. Use 2 pouches for a 10-mL dose.Bottle: Shake the bottle gently before each use.Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

What to do if you miss a dose of Mepron

Mepron contraindications

  • This medicine is not right for everyone. Do not use it if you had an allergic reaction to atovaquone.

Mepron warnings

  • Tell your doctor if you are pregnant or breastfeeding, or if you have liver disease or stomach or bowel problems.

  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Fever

Mepron interactions

  • Some medicines can affect how atovaquone works. Tell your doctor if you are using any of the following: IndinavirRifabutinRifampinTetracycline

  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Mepron side effects

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Blistering, peeling, red skin rash

  • Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes

  • Fever

Less Serious Side Effects

  • Headache

  • Runny or stuffy nose

  • Diarrhea

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