[{"arm_notes": "", "treatment_id": null, "treatment_name": "TODO Treatment - DrugsControl group: They will receive the national standard treatment of Covid-19.", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "TODO Treatment - DrugsIntervention group: Melatonin supplement at a dose of 18 mg twice a day for 7 days and orally, with standard treatment", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 779, "treatment_name": "Melatonin", "treatment_type": "Central nervous system agents", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 2188, "treatment_name": "Standard of care", "treatment_type": "Standard of care", "pharmacological_treatment": "Standard of care"}]