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Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.



Melatonin has been used for sleep disorders (e.g., insomnia and jet lag). Some herbal/diet supplement products have been found to contain possibly harmful impurities/additives. Check with your pharmacist for more details regarding the particular brand you use. The FDA has not reviewed this product for safety or effectiveness. Consult your doctor or pharmacist for more details.

How To Use

Take this product by mouth generally 2 hours before bedtime. Results may be seen within 30 minutes. Follow all directions on the product package. If you are uncertain about any of the information, consult your doctor or pharmacist. Full benefit is usually seen after 1 to 3 days of use. If your condition persists or worsens or if you think you may have a serious medical problem, seek immediate medical attention.

Side Effects

Headache or altered sleep pattern may occur. If either of these effects persists or worsens, contact your doctor promptly. Unlikely but report promptly: mental or mood changes, itching, fast heartbeat, sensation of heaviness in the head. If you notice other effects not listed above, contact your doctor or pharmacist.


If you have any of the following health problems, consult your doctor before using melatonin: disorders of immune system, liver or kidney disease, stroke, depression, epilepsy, diabetes. Limit alcohol intake, as it may aggravate certain side effects of this product. Caution is advised when performing tasks requiring alertness (e.g., driving). Liquid preparations of this product may contain sugar and/or alcohol. Caution is advised if you have diabetes, alcohol dependence or liver disease. Ask your doctor or pharmacist about the safe use of this product. Melatonin is not recommended for use in children (under 20 years old). Do not use this product if you plan to become pregnant. It may have a contraceptive (birth control) effect. Melatonin is not recommended for use during pregnancy. Consult your doctor before using this product. It is not known if this product is excreted into breast milk. Because of the potential risk to the infant, breast-feeding while using this product is not recommended. Consult your doctor before breast-feeding.

Drug Interactions

Before using this product, tell your doctor or pharmacist of all prescription and nonprescription medications you may use, especially of: immunosuppressants (e.g., azathioprine, cyclosporine), corticosteroids (e.g., prednisone). Also report use of drugs that cause drowsiness such as: sleeping pills, anti-anxiety drugs, narcotic pain relievers (e.g., codeine), sedatives, psychiatric medicines, anti-seizure drugs, muscle relaxants, antihistamines that cause drowsiness (e.g., diphenhydramine), herbs that cause drowsiness (e.g., valerian, kava). Check all nonprescription medicine labels carefully, especially cough-and-cold preparations since many contain drowsiness-causing antihistamines (e.g., diphenhydramine). Consult your pharmacist if you are uncertain.


If overdose is suspected, contact your local poison control center or emergency room immediately.


If you are having surgery, notify your doctors you are taking this herbal product.

Missed Dose

Not applicable.


Refer to storage information printed on the package. If you have any questions about storage, ask your pharmacist.