Melatonin Magnesium from Webber Naturals is a unique and synergistic non-habit forming nighttime formula that provides 150 mg of magnesium to support muscle function and encourage relaxation, with 10 mg of melatonin to promote healthy sleep cycles. This formula is designed for anyone who struggles to fall asleep and stay asleep.Recommended Dosage: (Adults) 1 tablet once daily or as directed by a physician. Do not drive or use machinery for 5 hours after taking melatonin. Jet lag: 1 tablet once daily at bedtime while traveling, and at destination after darkness has fallen until adaptation to the new daily pattern. For occasional short-term use. Sleep restriction or altered sleep schedule, delayed sleep phase disorder, sleep-wake cycle: 1 tablet once daily, at or before bedtime. For use beyond 4 weeks, consult a physician.Free of artificial colours, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, egg, fish, shellfish, animal products, salt, treenuts, or GMOs. Suitable for vegetarians/vegans.Consumption with alcohol, other medications or natural health products with sedative properties is not recommended. 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; or 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. Do not use this product if you are pregnant or breastfeeding. Mild gastrointestinal symptoms (nausea, vomiting, or cramping) and rare allergic reactions have been known to occur, in which case discontinue use. When used for sleep restriction/altered sleep schedule, delayed sleep phase disorder or sleep-wake cycle, consult your physician if symptoms persist continuously for more than 4 weeks (chronic insomnia). Keep out of reach of children.