Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Find a Vitamin or Supplement


Other Names:

13-Docosenoic Acid, cis-9-Octadecenoic Acid, Aceite de Lorenzo, Acide Érucique, Acide Oléique, Erucic Acid, Glycerol Trierucate Oil, Glycerol Trioleate Oil, Huile de Lorenzo, Huile de Trioléate de Glycérol, Oleic Acid.

LORENZO'S OIL Side Effects
LORENZO'S OIL Interactions
LORENZO'S OIL Overview Information

Lorenzo’s oil is a combination of two chemicals called erucic acid and oleic acid. People use Lorenzo’s oil as a medicine.

Lorenzo’s oil is used as a treatment for two related inherited conditions that affect the nervous system. These very rare conditions are called adrenoleukodystrophy (ALD), which occurs in children; and adrenomyeloneuropathy, which occurs in adults.

Lorenzo’s oil is named after a child, Lorenzo Odone, who developed ALD. His parents discovered a mixture of fatty acids that seemed to slow progression of the disease. The mixture became known as “Lorenzo’s oil.”

In the US, Lorenzo’s oil is only available to patients participating in a clinical trial. For more information, contact the Kennedy Krieger Institute at 1-800-873-3377.

There is currently an effort to obtain Food and Drug Administration (FDA) approval of Lorenzo’s oil as a prescription drug.

How does it work?

Adrenoleukodystrophy and adrenomyeloneuropathy are two rare genetic disorders that cause a large build-up of certain chemicals called very long-chain fatty acids. Lorenzo’s oil might help prevent some of this build-up. The build-up of these fatty acids is thought to cause many serious problems throughout the brain and body.

LORENZO'S OIL Uses & Effectiveness What is this?

Possibly Effective for:

  • Adrenoleukodystrophy (ALD). Lorenzo’s oil might help prevent nervous system problems in children who have ALD, but haven’t yet shown any symptoms. Lorenzo’s oil probably does not help children who already have symptoms of ALD.

Possibly Ineffective for:

  • Adrenomyeloneuropathy. Taking Lorenzo’s oil does not seem to improve symptoms or slow the progression of disease in patients with adrenomyeloneuropathy.

LORENZO'S OIL Side Effects & Safety

Lorenzo’s oil seems to be safe when used under the care of health professionals. Side effects of Lorenzo’s oil can include bruising and bleeding.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Not enough is known about the use of Lorenzo’s oil during pregnancy and breast-feeding. Stay on the safe side and avoid use.

Blood disorders that cause a decrease in blood platelets needed for clotting (thrombocytopenia) or a decrease in white cells needed to fight infections (neutropenia): Lorenzo’s oil might make these conditions worse.

LORENZO'S OIL Interactions What is this?

We currently have no information for LORENZO'S OIL Interactions


The following doses have been studied in scientific research:


  • For adrenoleukodystrophy (ALD): a dose of Lorenzo’s oil that provides about 20% of daily calories has been used. In another study, 300 mg/kg/day of erucic acid and 1.7 grams/kg/day of oleic acid (both contained in Lorenzo’s oil) were used.

See 1 Reviews for this Treatment - OR -

Review this Treatment

Learn about User Reviews and read IMPORTANT information about user generated content

Conditions of Use and Important Information: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version. © Therapeutic Research Faculty 2009.

Search for a Vitamin or Supplement

Ex. Ginseng, Vitamin C, Depression

Today on WebMD

vitamin rich groceries
Do you know your vitamin ABCs?
St Johns wart
Ease hot flashes and other symptoms.
Are you getting enough?
Take your medication
Wonder pill or overkill?
fruits and vegetables
Woman sleeping
Woman staring into space with coffee
IMPORTANT: About This Section and Other User-Generated Content on WebMD

The opinions expressed in WebMD User-generated content areas like communities, reviews, ratings, or blogs are solely those of the User, who may or may not have medical or scientific training. These opinions do not represent the opinions of WebMD. User-generated content areas are not reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance, objectivity, or any other reason except for compliance with our Terms and Conditions. Some of these opinions may contain information about treatment or uses of drug products that have not been approved by the U.S. Food and Drug Administration. WebMD does not endorse any specific product, service, or treatment.

Do not consider WebMD User-generated content as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of something you have read on WebMD. You should always speak with your doctor before you start, stop, or change any prescribed part of your care plan or treatment. WebMD understands that reading individual, real-life experiences can be a helpful resource but it is never a substitute for professional medical advice, diagnosis, or treatment from a qualified health care provider. If you think you may have a medical emergency, call your doctor or dial 911 immediately.