All uses except jet lag: If symptoms persist continuously for more than 4 weeks (chronic insomnia), consult your physician. All uses: Consumption with alcohol, other medications, or natural health products with sedative properties is not recommended. Consult a physician prior to use if you have one of the following conditions: asthma, cardiovascular disease, chronic kidney disease, depression, diabetes or hypoglycemia, hormonal disorder, immune system disease, liver disease, migraine, or seizure disorders. Consult a physician prior to use if you are taking one of the following medications: anticoagulant, anticonvulsant, blood pressure medications, immunosuppressive medications, sedative, hypnotic or psychotropic medications, or steroids. Do not use if you are pregnant or breastfeeding. Mild gastrointestinal symptoms (nausea, vomiting, or cramping) or rare allergic reactions have been known to occur, in which case discontinue use. Keep out of reach of children.