Drugs Home > Mefloquine Dosage

Your doctor will take several factors into consideration when determining your dosage of mefloquine. Some of these factors include your age, your weight (for children), and whether you are taking this drug for treating malaria or for preventing it. For example, the standard recommendation for treating malaria is a one-time dose of 1250 mg. This medication will not work unless it is taken as prescribed.

An Introduction to Your Dosage of Mefloquine

The dose of mefloquine hydrochloride (Lariam®) your healthcare provider recommends will vary depending on a number of factors, including:
  • Whether you are taking the medication to prevent or to treat malaria
  • Your age
  • Your weight (in children).
As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.

What Is the Mefloquine Dosage for Preventing Malaria?

The standard dosage of mefloquine for malaria prevention is 250 mg once a week. Treatment usually begins one to three weeks before traveling to an area where you might get malaria, continues weekly while you are in the malaria area, and for four weeks after leaving the area.
The usual dosage for preventing malaria in children who weigh 45 kg (about 99 pounds) or less is based on the child's weight. Children who weigh more than 45 kg are given the adult dose. Just like adults, children will need to take mefloquine before, during, and after travel to prevent malaria.

What Is the Mefloquine Dosage for Treating Malaria?

The standard dosage of mefloquine for treating malaria in adults is 1250 mg in one dose.
The standard dose in children is based on the child's weight. Children are usually given 20 mg to 25 mg of mefloquine per kg of body weight. Children may take the medication in two doses, given six to eight hours apart, to help reduce the chance of side effects, such as vomiting.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
List of references (click here):
Other Articles in This eMedTV Presentation

Topics & Medications


Related Channels

eMedTV Links
Copyright © 2006-2020 Clinaero, Inc.

eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind. Site users seeking medical advice about their specific situation should consult with their own physician. Click Terms of Use for more information.

This site complies with the HONcode standard for trustworthy health information:
verify here.