COVID-19 Treatment Using Methylene Blue and Photodynamic Therapy

"Treatment group. Methylene blue (SamaraMedProm, Russia, Registration number: MP-001834, 13.09.2012) 1 mg/kg concentration orally one time were added to the current therapy of the participant (e.g., azithromycin, hydroxychloroquine, aminodihydrophthalazinedione sodium, levofloxacin, etc.), if any, and irradiation of the participant's chest was performed by 650 nm laser source (UFPh-675-01-BIOSPEC, BIOSPEC, Russia, Registration number: 2009/04648, 26.03.2009) with 18 J/cm\^2 energy dose.~For critically ill participants: Inhalation by 0.2 mg methylene blue (SamaraMedProm, Russia, Registration number: MP-001834, 13.09.2012) 10 ml water solution and irradiation of pharynx and nasal cavity by 650 nm laser source (UFPh-675-01-BIOSPEC, BIOSPEC, Russia, Registration number: 2009/04648, 26.03.2009) with 36 J/cm\^2 energy dose were performed."