Indications
Melatonin is used for numerous conditions but is showing the most promise in short-term regulation of sleep patterns, including jet lag.
Insomnia: Melatonin helps to induce sleep in people with-
- Disrupted circadian rhythms (such as those suffering from jet lag or poor vision or those who work the night shift)
- Low melatonin levels (such as some elderly and individuals with schizophrenia)
- Children with learning disabilities who suffer from insomnia.
Osteoporosis: Melatonin stimulates cells called osteoblasts that promote bone growth.
In Menopause: Melatonin helps peri- or postmenopausal women to regulate sleep patterns.
Eating disorders: Melatonin levels may play a role in the symptoms of anorexia.
Sarcoidosis: Sarcoidosis is an inflammatory disease that affects multiple organs in the body, but mostly the lungs and lymph glands.
Attention Deficit Hyperactivity Disorder (ADHD): It may be effective in managing sleep disturbances in children with this condition
Therapeutic Class
Pharmacology
Dosage & Administration
Adult-
Insomnia: 3-6 mg one hour before bedtime
Jet lag: 0.50 to 5 mg one hour prior to bedtime at final destination or, 1 to 5 mg 1 hour before bedtime for 2 days prior to departure and for 2 to 3 days upon arrival at final destination.
- Eastbound travel: Take a preflight early evening treatment followed by treatment at bedtime for 4 days after arrival.
- Westbound travel: Take for 4 days at bedtime when in the new time zone.
Sarcoidosis: 20 mg per day for 4 to 12 months.
Depression: 0.125 mg twice in the late afternoon, each dose 4 hours apart.
Difficulty falling asleep: 5 mg 3 to 4 hours before an imposed sleep period over a 4-weeks period.Children-6 months to 14 years of age with sleep disorders: 0.30 mg/day
Interaction
Antidepressant Medications: Melatonin reduces the antidepressant effects of desipramine and fluoxetine. In addition, fluoxetine leads to measurable depletion of melatonin in people.
Antipsychotic Medications: People with schizophrenia and tardive dyskinesia taking antipsychotic medications with melatonin has significantly reduced mouth movements compared to those who did not take the supplements.
Benzodiazepines: The combination of melatonin and triazolam improves sleep quality. In addition, there have been a few reports suggesting that melatonin supplements may help individuals stop using long-term benzodiazepine therapy.
Blood Pressure Medications: Melatonin may reduce the effectiveness of blood pressure medications like methoxamine and clonidine. In addition, calcium channel blockers (such as nifedipine, verapamil, diltiazem, amlodipine, nimodipine, felodipine, nisoldipine, and bepridil) may decrease melatonin levels. Use of beta-blockers (propranolol, acebutolol, atenolol, labetolol, metoprolol, pindolol, nadolol, sotalol, and timolol) may reduce melatonin production in the body.
Blood-Thinning Medications, Anticoagulants: Melatonin may increase the risk of bleeding from anticoagulant medications such as warfarin.
Interleukin 2: In one study of 80 cancer patients, use of melatonin in conjunction with interleukin-2 led to more tumor regression and better survival rates than treatment with interleukin-2 alone.
Nonsteroidal Anti-inflammatory Drugs (NSAIDs): NSAIDs such as ibuprofen may reduce the levels of melatonin in the blood.
Steroids and Immunosuppressant Medications: People should not take melatonin with corticosteroids or other medications used to suppress the immune system because the supplement may cause them to be ineffective.
Tamoxifen: Preliminary research suggests that the combination of tamoxifen (a chemotherapy drug) and melatonin may benefit certain patients with breast and other cancers.
Other Substances: Caffeine, tobacco, and alcohol can all diminish levels of melatonin in the body while cocaine and amphetamines may increase melatonin production.
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