Levocarnitine is a naturally occurring substance that the body needs for energy.

Levocarnitine is used to treat carnitine deficiency.

Levocarnitine may also be used for purposes not listed in this medication guide.

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.

The liquid medicine can be taken alone or mixed with a beverage or soft food. Sip or eat the mixture slowly.

Levocarnitine should be taken at evenly spaced intervals every 3 or 4 hours. This medicine works best if you take it with a meal or within 30 minutes after a meal.

While using levocarnitine, you may need frequent blood tests.

Store at room temperature away from moisture and heat.

To make sure levocarnitine is safe for you, tell your doctor if you have:

• kidney disease (or if you are on dialysis);

• a history of seizures; or

• if you use a blood thinner (warfarin, Coumadin, Jantoven) and you have routine "INR" or prothrombin time tests.

Levocarnitine is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

It is not known whether levocarnitine passes into breast milk or if it could harm a nursing baby. You should not breast-feed while using levocarnitine.

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Follow your doctor's instructions about any restrictions on food, beverages, or activity.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Levocarnitine may cause serious side effects. Call your doctor at once if you have:

• a seizure (convulsions).

Common side effects of levocarnitine may include:

• stomach pain;

• nausea, vomiting; or

• diarrhea.

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.

Other drugs may interact with levocarnitine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.