Medications and Drugs
Brand Names: Lariam
Generic Name: mefloquine (Pronunciation: MEF loe kwin)
What is mefloquine (Lariam)?
Parasites that cause malaria typically enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia.
Mefloquine is used to treat or prevent malaria.
Mefloquine may also be used for other purposes not listed in this medication guide.
Lariam 250 mg
round, white, imprinted with LARIAM 250 ROCHE
Mefloquine 250 mg-BAR
oval, white, imprinted with b 171
Mefloquine 250 mg-ROX
round, white, imprinted with 54 111
What are the possible side effects of mefloquine (Lariam)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop taking mefloquine and call your doctor at once if you have a serious side effect such as:
Less serious side effects may include:
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is the most important information I should know about mefloquine (Lariam)?
You should not use this medication to prevent malaria if you have a recent history of seizures, depression, anxiety, or a psychiatric illness such as schizophrenia. However, your doctor may prescribe mefloquine to treat malaria even if you do have any of these conditions.
Before using this medication, tell your doctor if you have liver or kidney disease, severe complications from infection with malaria, or uncontrolled vomiting or diarrhea.
If you vomit within 1 hour after taking this medication, take another dose. If your vomiting continues, call your doctor.
If you are taking this medicine to prevent malaria, start taking it 1 week before entering an area where malaria is common. Take the medication once per week during your stay and for at least 4 weeks after you leave. If you stop taking the medicine early for any reason, contact a healthcare professional about another form of malaria prevention.
If you are taking this medicine to treat malaria, the usual dose is 5 tablets at one time as a single dose.
Take this medication for the entire length of time prescribed by your doctor. Your symptoms may get better before the infection is completely treated.
In addition to taking mefloquine, use protective clothing, insect repellents, and mosquito netting around your bed to further prevent mosquito bites that could cause malaria.
Contact your doctor as soon as possible if you have been exposed to malaria, or if you have a fever or other symptoms of illness during or after a stay in an area where malaria is common.
No medication is 100% effective in treating or preventing malaria. For best results, keep using the medication as directed. Talk with your doctor if you have fever, vomiting, or diarrhea during your treatment.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Need help identifying pills and medications?
Infectious Disease Resources
- Symptoms of a Severe Allergic Reaction
- Breast Cancer Treatment Options
- Is Your Body Ready for Pregnancy?