Side Effects and Warnings. Melatonin is likely safe when taken by mouth in commonly studied doses for up to three months, typically 1-20 milligrams. In children, melatonin is likely safe for long-term use in recommended doses.ide Effects and Warnings. Melatonin is likely safe when taken by mouth in commonly studied doses for up to three months, typically 1-20 milligrams. In children, melatonin is likely safe for long-term use in recommended doses.
monoclenoun [ C ] uk â /ËmÉn.É.kÉl/ us â /ËmÉË.nÉ.kÉl/. âº a round piece of glass worn, especially in the past, in front of one eye in order to help you to see more clearly. Thesaurus: synonyms and related words. Eyesight, glasses & lenses. (as) blind as a bat idiom. 20/20 vision.
Medical Definition of MONONUCLEAR PHAGOCYTE SYSTEM. : a system of cells comprising all free and fixed phagocytes and especially macrophages together with their ancestral cells including monocytes and their precursors in the bone marrowâcompare reticuloendothelial system.efinition of MONONUCLEAR PHAGOCYTE SYSTEM. : a system of cells comprising all free and fixed phagocytes together with their ancestral cells including monocytes and their precursors in the bone marrow âcalled also reticuloendothelial system. ADVERTISEMENT.