Melatonin is a hormone secreted by the pineal gland in the brain to help regulate various body functions, including the sleep cycle. Melatonin production reaches the highest levels at night. Increased melatonin makes the body relax so it induces sleep. Melatonin supplements are available in drug stores and pharmacies and are often used to help people with insomnia or those who have jetlag. There are also melatonins for toddlers
Melatonin can cause mood changes such as feelings of sadness and worsening depressive symptoms.
In some cases, psychotic symptoms such as delusions, hallucinations, and paranoia are also reported.
Therefore, individuals with depressive or psychotic disorders should consult a physician before taking melatonin.
Melatonin can lower blood pressure, increase cholesterol levels, and increase blood sugar levels in patients with type 1 diabetes.
Melatonin can interact with a number of medicine including antidepressants and antipsychotics, anti-inflammatory non-steroidal medicine (such as ibuprofen), steroid drugs, and blood-thinning medicine.
Melatonin also has the potential to interact with various substances such as alcohol, caffeine, and tobacco