Are there any side-effects or precautions when using Melatonin?

The side effects of melatonin intake may include headache, short-term feelings of depression, daytime sleepiness, dizziness, stomach cramps, and irritability. May cause sleepiness and drowsiness – do not drive or operate machinery for 4-5 hours after taking melatonin. Consult with a healthcare professional prior to use if you are using medications (esp. sedative medications, birth control, and/or medications for diabetes) or if you are undergoing treatment for any medical condition.  If you believe that you are experiencing any adverse reactions, please see your healthcare professional immediately. Each individual may react differently to any product or supplement. We always recommend that you consult with your healthcare professional prior to considering the use of this product or any supplement.*