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PRECAUTIONS: Before taking melatonin, tell your doctor or pharmacist if you are allergic to it; or to other ingredients in this product; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.If you have any of the following health problems, consult your doctor or pharmacist before using this product: diabetes, high blood pressure, immune system disorder, liver disease, mental/mood disorder (e.g., depression), seizure disorder (e.g., epilepsy).This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.Liquid forms of this product may contain sugar, alcohol, or aspartame. Caution is advised if you have diabetes, alcohol dependence, liver disease, phenylketonuria (PKU), or any other condition that requires you to limit/avoid these substances in your diet. Ask your doctor or pharmacist about using this product safely.Caution is advised when using this product in children due to a possible risk of changes in sexual development. Consult the doctor for details.This product is not recommended for use in women who are pregnant or planning pregnancy. It may have an effect on the release of eggs (ovulation). Consult your doctor for details.It is not known whether this product passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: If you are taking this product under your doctor's direction, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.Before using this product, tell your doctor or pharmacist of all prescription and nonprescription medications you may use, especially of: "blood thinners" (e.g., warfarin, heparin), blood pressure medications (especially nifedipine), products that contain caffeine (including coffee, tea, some sodas), drugs that may affect your immune system (e.g., azathioprine, cyclosporine, prednisone), fluvoxamine.Tell your doctor or pharmacist if you also take drugs that cause drowsiness such as: certain antihistamines (e.g., diphenhydramine), anti-seizure drugs (e.g., carbamazepine), other medicine for sleep or anxiety (e.g., alprazolam, diazepam, zolpidem), muscle relaxants, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., chlorpromazine, risperidone, amitriptyline, trazodone). Check the labels on all your medicines (e.g., cough-and-cold products) because they may contain ingredients that may cause drowsiness. Ask your pharmacist about using those products safely.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

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? Use the pill identifier tool on RxList.