Cautions

"Based on available studies and clinical use, melatonin is generally regarded as safe in recommended doses for short-term use.

"Available trials report that overall adverse effects are not significantly more common with melatonin than placebo."         - U.S. National Institutes of Health

Cautions Compared

Mouse-over each item for more details.
  Absolute Contraindication (Completely Prohibited)   NIH MNT MSC WMD
Lactation
  Contraindicated (Inadvisable to Use)   NIH MNT MSC WMD
Alcohol, Other Drugs  
Autoimmune 
Children 
Liver or Kidney Disease, Stroke, Epilepsy   
Pregnancy
Schizophrenia, Systemic Lupus Erythematosus   
  Possible Side Effects   NIH MNT MSC WMD
Abnormal Heart Rhythms  
Blood Flow 
Blood Pressure   
Blood Sugar, Cholesterol, Heart Rhythms   
Confusion, Difficulty Concentrating, Alertness
Eyes   
Fatigue, Dizziness, Sleepiness, Irritability  
Headache 
Hormonal Effects   
Hypothermia   
Itching, Heaviness in the Head   
Mood Changes, Depression
Morning Grogginess  
Reduced sperm count  
Seizure  
Sleepwalking   
Stomach Problems  
Vivid Dreams  
  Overdose   NIH MNT MSC WMD
Balance   
Disorientation   
Psychotic Symptoms   

Summarized from:   U.S. National Institutes of Health (NIH),  
MedicineNet (MNT),   Medscape (MSC),   WebMD® (WMD)

WorldWide Labs
Customer Comments

"Thank you so much for the Melatonin. Have been insomniac in the last ten years. As I have extremely low alcohol tolerance, it is rather of relief to have something else that gets me comfortable sleep. I will be dreaming of skiing in Snowbird [in Utah near WWL] tonight! Ciao." - S., Japan

"I am very pleased with the product and have been taking it regularly now for about 18 months with no side effects. I have also recommended the product to friends. I am not currently taking any prescription drugs that may conflict with the Melatonin." - R.C., United Kingdom

"I just had to send you a message of thanks, for your detailed response to my query re: Melatonin and alcohol. It certainly put my mind at ease. Actually, I neither take melatonin nor alcohol daily. But, I needed to know, just in case. If your company has a mailing list, please put me on it. Thanks again." - M.M., Mexico

"Thank you WWL firstly for the prompt delivery of my Melatonin order. I live well away from any major cities and have had much trouble trying to find any product to aid me with sleepless nights. A work collegue told me of Melatonin but I was having problems finding any locally. I am now spreading the word of just what a valuable resource you are and of just how high the quality of your product is." - Michelle from Gladstone, Australia

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