| Level | Qualifying studies |
|---|---|
| A | Systematic review or meta-analysis of human trials |
| B | Human RDBPC trials. ≥ 2 studies and/or 1 study with ≥ 50 subjects |
| C | Human RDBPC trials or RCTs. 1 study < 50 subjects |
| D | Human trials or in-vivo animal trials |
| N/A | Insufficient evidence to suggest that any significant nutrient depletions exist |
Summary: Sleep disorders are the common side effects of beta blockers. Beta blockers have been shown to reduce the production of melatonin via specific inhibition of adrenergic beta1-receptors. Exogenous melatonin, taken in the evening as a supplement, could reduce the central nervous system (CNS) side effects (sleep disorder) associated with beta-adrenergic receptor blockers as well as the potential risk associated with reduction of the melatonin synthesis.
Sleep disorders are the common side effects of beta blockers. Beta blockers have been shown to reduce the production of melatonin via specific inhibition of adrenergic beta1-receptors. Exogenous melatonin, taken in the evening as a supplement, could reduce the central nervous system (CNS) side effects (sleep disorder) associated with beta-adrenergic receptor blockers as well as the potential risk associated with reduction of the melatonin synthesis.
