Abstract: The invention relates to soluble melatonin tripartate adduct comprising three structurally distinct regions and optionally trehalose, its stable sterile lyophilized powder and preservative-free aqueous solution or ointment, and to related pharmaceutical forms thereof, wherein the active melatonin moiety is adducted to a nucleoside in an optimal ratio range, with or without the presence of C2-C5 short chain amino acid. The invention further relates to the pharmaceutical field, more precisely it refers to the ophthalmic use of said melatonin tripartate adduct and to the method to prevent or treat serious ophthalmic pathologies in mammals and humans, more precisely rare and severe eye sight-threatening conditions and neuro-ophthalmic disorders in human and veterinary medicine, wherein said acute and chronic pathophysiological alterations and oculopathies are mainly caused by oxidative stress and related hypoxia-inducible factors (HIFs) and inflammation affecting the eyes.

Abstract: The present invention relates to a concentrated melatonin solution, wherein melatonin is present in a quantity of 10.0% or higher in a substantially water-free carrier mixture of ethanol and a polyethoxylated derivative. The concentrated solution, free of preserving agents, is suitable to prepare injectable sterile compositions for parenteral administration, or formulations for topical or oral administration. The invention also encompasses a method for the preparation of the concentrated solution, as well as the possible benefits of the intravenous infusion of high levels of melatonin as adjuvant therapy in Ebola or Dengue hemorrhagic fever (DHF) or as an anti-oxidant/anti-aging treatment.