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

"The veterinarian has prescribed Melatonin for my dog, a Keeshond. She is horrified of thunder and other loud noises. The doctor said that Melatonin will keep her calm." - K.F.B., USA

"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 a shift worker frequent night/day swaps) and have been using your Melatonin for about 3 years to help switch from days to nights. It is great!!" - J.S. MD (ER Physician), Canada

"This is the second time to order this product for my grand father and my mother. They said, it has been really helpful for their sleep. And thank you so much for good products ,safe and fast delivery to Korea." - T.H.K., Korea

"I have been using Melatonin since 1990 as a sleep aid. I have a sleep disorder and am unable to use sleeping pills (and don't want to). Melatonin makes the difference between sleep and not sleeping. This has necessitated many trips to the United States.... sometimes for the sole purpose of purchasing Melatonin." - M.M., Canada

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