Cautions and Warnings: Keep out of reach of children. Consult a healthcare practitioner if symptoms persist or worsen, if sleeplessness persists continuously for more than 3 weeks. Consumption with alcohol, other drugs or natural health products with sedative properties is not recommended. Consult a healthcare practitioner if you have asthma, cardiovascular disease, chronic kidney disease, depression, diabetes or hypoglycemia, hormonal disorder, immune system disease, liver disease, migraines or seizure disorders. Consult a healthcare practitioner prior to use if you are taking an anticoagulant, anticonvulsant, blood pressure medications, immunosuppressive medications, sedative, hypnotic or psychotropic medications or steroids. Contraindications: Do not take if pregnant or breastfeeding. Do not use if allergic to plants of the Asteraceae/Compositae/Daisy family. Do not drive or use machinery for 5 hours after taking melatonin. Known Adverse Reactions: Some people may experience drowsiness. Exercise caution if operating heavy machinery, driving a motor vehicle or involved in activities requiring mental alertness. Some people may experience mild gastro-intestinal bloating, constipation or indigestion. Mild gastrointestinal symptoms (nausea, vomiting, or cramping) have been known to occur in which case, discontinue use. Hypersensitivity, such as allergy, has been known to occur; in which case, discontinue use. Rare allergic reactions have been known to occur in which case, discontinue use. Stop use if allergy occurs or if you experience headache, confusion or nausea.